标准编号:	GB/T 5750.8-2023
中文名称:	生活饮用水标准检验方法 第8部分：有机物指标
英文名称:	Standard examination methods for drinking water—Part 8: Organic indices
中标分类:	C51    环境卫生
行业分类:	GB    国家标准
ICS分类:	13.060 13.060     13.060
发布机构:	国家市场监督管理总局 国家标准化管理委员会
发布日期:	2023-03-17
实施日期:	2023-10-1
标准状态:	valid
替代旧标准:	GB/T 5750.8-2006 生活饮用水标准检验方法 有机物指标 GB/T 32470-2016 生活饮用水臭味物质 土臭素和2-甲基异莰醇检验方法
翻译语言:	英文
文件格式:	PDF
中文字符数:	225000 字
翻译价格(元):	15750.0
交付时间:	付款后 1~8 个工作日

Foreword This document is drafted in accordance with the provisions of GB/T 1.12020 "Guidelines for standardization work Part 1: the structure of standardized documents and drafting rules This document is part 8 of GB/T 5750 "Standard Test Methods for Drinking Water". GB/T 5750 has published the following parts Part 1:General Provisions. Part 2: the collection and preservation of water samples. Part 3: Quality control of water quality analysis. Part 4: sensory properties and physical indicators Part 5: inorganic non-metallic indicators. Part 6: metal and metal-like indicators. Part 7: organic composite indicators. Part 8: organic indicators. Part 9: Pesticide indicators. Part 10: Disinfection by-product indicators. Part 11: Disinfectant indicators. Part 12: Microbiological indicators. Part 13: Radioactive indicators. This document replaces GB/T 5750.8-2006 "drinking water standard test method organic indicators" and GB/T32470-2016 "drinking water odor substances earth odor and 2-methyl isohydric alcohol test method". Among them, GB/T32470-2016 all the contents of this document 76.1, compared with GB/T 5750.8-2006, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) increased the "terms and definitions" (see Chapter 3) b) the addition of 24 test methods (see 4.2,4.3,13,1,15.1,16,2,20,1,48,1,61,1,75,1,75,2,76,1,78.1,78,2_79.1_79.2,80.1,81.1,82,1,83,1,84.1,86,1,88,1,89,1. 90.1). c) Changed 1 test (see 21.2, 18.4 of the 2006 version);) d) deleted 12 tests (see 1,1,3,1,4,1,9,2,12,1,17,1,18,1,18,3,23,1,24,1,37.1, of the 2006 edition 44.1) Please note that some of the contents of this document may relate to patents. The issuer of this document does not assume responsibility for identifying patents. Introduction GB/T 5750 "Standard Test Methods for Drinking Water" as the recommended national standard for drinking water testing technology and GB5749 "Drinking Water Sanitation Standards" supporting the important technical support of GB5749, for the implementation of GB5749, to carry out health and safety assessment of drinking water to provide testing methods. GB / T 5750 consists of 13 parts. Part 1: General Provisions. The purpose is to provide the basic principles and requirements of water quality testing. Part 2: the collection and preservation of water samples. The purpose is to provide water samples collected, preservation, management, transport and sampling quality control of the basic principles, measures and requirements. Part 3: quality control of water quality analysis. The purpose is to provide water quality inspection and testing laboratory quality control requirements and methods Part 4: Sensory traits and physical indicators. The purpose is to provide sensory traits and physical indicators of the corresponding test methods Part 5: inorganic non-metallic indicators. The purpose is to provide inorganic non-metallic indicators of the corresponding test methods Part 6: Metals and metal-like indicators. The purpose is to provide metal and metal-like indicators of the corresponding test methods Part 7: Organic composite indicators. The purpose is to provide a comprehensive index of organic substances corresponding test methods Part 8: organic indicators. The purpose is to provide the corresponding test methods for organic indicators. Part 9: Pesticide indicators. The purpose is to provide the corresponding test methods for pesticide indicators. Part 10: Disinfection by-products indicators. The purpose is to provide the corresponding test methods for disinfection by-product indicators Part 11: Disinfectant indicators. The purpose is to provide the corresponding test methods for disinfectant indicators Part 12: Microbiological indicators. The purpose is to provide the corresponding test methods for microbial indicators Part 13: radioactive indicators. The purpose is to provide the corresponding test methods for radioactive indicators 1 Scope This document describes the domestic drinking water carbon tetrachloride, 1,2-dichloroethane 1,1,1-trichloroethane, vinyl chloride, 1,1-dichloroethylene 1,2 dichloroethylene, trichloroethylene, tetrachloroethylene, benzo[a]flower, acryl coolamine, has been coolamine, di(2-ethyl has been) phthalate, microcystin, ethyl lung, acryl meth, acrolein, epichlorohydrin, benzene, toluene, xylene ethylbenzene, isopropylbenzene, chlorobenzene, 1,2-dichlorobenzene, 1,3-dichlorobenzene, 1,4-dichlorobenzene, trichlorobenzene, tetrachlorobenzene, nitrobenzene, trinitrotoluene, dinitrobenzene, nitrochlorobenzene, dinitrochlorobenzene, chlorobutadiene, styrene, triethylamine, aniline, carbon disulfide, hydrate trap, turpentine, scold, picric acid, butylxanthogenic acid, hexachlorobutadiene, diphenylamine, dichloromethane 1,1- dichloroethane, 1,2-dichloropropane, 1,3-dichloropropane, 2,2-dichloropropane, 1,1,2-trichloroethane, 1,2,3-trichloropropane, 1,1,1,2-tetrachloroethane, 1,1,2,2-tetrachloroethane, 1,2-dio-3-chloropropane, 1,1-dichloropropene, 1,3-dichloropropene 1,2-dioethylene, 1,2-dioethane, 1,2 1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene, propylbenzene, 4-methylisopropylbenzene, butylbenzene, sec-butylbenzene, tert-butylbenzene, pentachlorobenzene, 2-chlorotoluene, 4-chlorotoluene, aubenzene, cai, bisphenol A, hyoscyamine, 2-methylisobutanol, pentachloropropane, acrylic acid, glutaraldehyde, naphthenic acid, anisole, theophyll, perfluorooctanoic acid, perfluorooctane sulfonic acid, dimethyl disulfide, dimethyl trisulfide, polycyclic Aromatic hydrocarbons, polychlorinated biphenyls, carbon tetrachloride in pharmaceuticals and personal care products and water (capillary column gas chromatography) vinyl chloride (capillary column gas chromatography) 1,1-dichloroethene (purge and trap gas chromatography), 1,2-dichloroethene (purge and trap gas chromatography) and [a] flowers, propylene koolamine (gas chromatography) has been endocoumarine, microcystin (high performance liquid chromatography) Acrylaldehyde, Acrylamide, Acrylaldehyde, Benzene (liquid-liquid extraction capillary column gas chromatography), Toluene (liquid-liquid extraction capillary column gas chromatography), Xylene (liquid-liquid extraction capillary column gas chromatography), B (liquid-liquid extraction capillary column gas chromatography), Nitrobenzene, Trinitrotoluene, Dinitrobenzene, Nitrochlorobenzene, Dinitrochlorobenzene, Chlorobutadiene, Styrene (liquid-liquid extraction capillary column gas chromatography) Triethylamine, aniline, carbon disulfide, hydrated fat, turpentine, Vishnu, picric acid, butylxanthic acid, hyoscyamine, 2-methylisocommodol, pentachloropropane, acrylic acid (ion chromatography), glutaraldehyde, naphthenic acid, dimethyl disulfide, dimethyl trisulfide, polycyclic aromatic hydrocarbons, polychlorinated biphenyls determination method. This document applies to the determination of organic matter indicators in drinking water and (or) water source water 2 Normative reference documents The following documents constitute the essential provisions of this document through the normative references in the text. Among them, note the date of the reference document, only the date of the corresponding version applies to this document; do not note the date of the reference document, its latest version (including all the revision of the list) applies to this document. GB/T 5750.1 Standard test methods for drinking water Part 1: General Provisions GB/T 5750.3 standard test methods for drinking water Part 3: quality control of water quality analysis GB/T 5750.10-2023 standard test methods for drinking water Part 10 disinfection by-product indicators GB/T6682 analytical laboratory water specifications and test methods 3 Terms and definitions GB/T 5750.1GB/T 5750.3 defined terms and definitions apply to this document 4 Carbon tetrachloride 4.1 Capillary column gas chromatography 4.1.1 Minimum detection mass concentration The minimum detection mass concentration of this method are: trichloromethane 0.2g / L; carbon tetrachloride.1g / L 4.1.2 Principle The water sample is placed in a sealed headspace bottle, at a certain temperature and after a certain time of equilibrium, trichloromethane and carbon tetrachloride in water escape to the upper space and reach dynamic equilibrium in the gas-liquid phase, at this time, the concentration of trichloromethane and carbon tetrachloride in the gas phase is proportional to its concentration in the liquid phase. Through the determination of trichloromethane and carbon tetrachloride concentration in the gas phase, the concentration of trichloromethane and carbon tetrachloride in the water sample can be calculated. 4.1.3 Reagents or materials 5 1,2-dichloroethane 5.1 purge trap gas chromatography mass spectrometry Determination by the method described in 4.2. 5.2 Headspace capillary column gas chromatography (hydrogen flame detector) Determined by the method described in 21.2 5.3 Headspace capillary column gas chromatography (electron capture detector) Determined by the method described in 4.3. 6 1,1,1-trichloroethane 6.1 Blow-by-trap gas chromatography-mass spectrometry Determination by the method described in 4.2 6.2 Headspace capillary column gas chromatography Determination by the method described in 4.3 7 Vinyl chloride 7.1 Capillary column gas chromatography 7.1.1 Minimum detection mass concentration If 100mL of water sample is taken and 1mL of gas on liquid is taken for chromatographic determination, the minimum detectable mass concentration is 1g/L. 8 1,1-Dichloroethylene 8.1 Purge and trap gas chromatographic method 8.1.1 Minimum detectable mass concentration The minimum detectable mass concentrations for this method are: 1,1-dichloroethylene, 0.02 g/L; trans-1,2-dichloroethylene, 0.02 g/L; cis-1. Impurities in the purge gas, organic matter released from the trap and piping are the main cause of contamination. Therefore, avoid using non-Teflon lines, sealing materials, or flow controllers with rubber components in purge-trap systems. During sampling, processing and transportation, reagent blanks prepared with pure water are required for calibration, and the whole system is frequently baked and purged. 8.1.2 Principle At room temperature, inert gas will be in a special purge bottle of water samples of 1,1-dichloroethylene and other volatile organic compounds blow out, to be measured in the trap adsorption. Then, by thermal desorption of the substances to be measured by the inert gas into the gas chromatograph for separation and determination. 8.1.3 Reagents or materials 8.1.3.1 High purity nitrogen [o(N)>99.999%]. 8.1.3.2 Pure water: chromatographic test without interfering components 8.1.3.3 Ascorbic acid (C.H.O) 9 1,2-Dichloroethylene 9.1 Purge and trap gas chromatography Determination by the method described in 8.1 9.2 Purge-and-trap gas chromatography-mass spectrometry Determined by the method described in 4.2. 9.3 Headspace capillary column gas chromatography Determination by the method described in 4.3 10 Trichloroethylene 10.1 Purge-trap gas chromatography-mass spectrometry Determination by the method described in 4.2 10.2 Headspace capillary column gas chromatography Determination by the method described in 4.3 11 Tetrachloroethylene 11.1 Purge-and-trap gas chromatography-mass spectrometry Determination by the method described in 4.2 11.2 Headspace capillary column gas chromatography Determination by the method described in 4.3 12 Benzo[a]flower 12.1 High performance liquid chromatography (I) 12.1.1 Minimum detectable mass concentration The minimum detection mass of this method is 0.07ng, and if 500 water samples are taken for determination, the minimum detection mass of this method is 1.4ng/L. 12.1.2 Principle Benzo[a]flower and other aromatic hydrocarbons in water can be extracted by cyclohexane, the extract is purified by adsorption of activated alumina, eluted with benzene, concentrated, and then quantified by liquid chromatography - fluorescence detector. 12.1.3 Reagents or materials The reagents and materials used should be blank test, that is, through the entire operation process, to prove the presence of non-interfering substances. All reagents should be filtered through a 0.45um membrane before use. 12.1.3.1 Ultrapure water; resistivity greater than 18.0MQ-cm. 12.1.3.2 Activated alumina: take 250g of 100 mesh 200 mesh neutral alumina (Al0;) for chromatography at 10C activation h, cooled and bottled. bottle, stored in the desiccator, and set aside. 12.1.3.3 Hydrochloric acid solution (1+19): Take 5mL of hydrochloric acid (o2=1.19g/mL), add to 95mL of pure water and mix well. 12.1.3.4 Glass wool: Soak with hydrochloric acid solution (1+19) overnight, then wash with pure water to neutral. Soak with sodium hydroxide solution overnight, wash with pure water to neutral, dry at 105C and set aside. 13 Acryl Coolamine 13.1 High performance liquid chromatography tandem mass spectrometry 13.1.1 Minimum detection mass concentration Take 100mL of water sample after extraction and volume to 10mL to determine the minimum detection mass concentration of 0.020g/L This method is only used for the determination of domestic drinking water 13.1.2 Principle The water sample is purified and enriched by activated carbon solid phase extraction column, and the eluate is concentrated, capacitated and filtered, then separated by liquid chromatography, detected by tandem mass spectrometry, and quantified by isotope internal standard method. 13.1.3 Reagents Unless otherwise specified, the reagents used in this method are analytically pure, and the water used for the experiment is the first grade water specified in GB/T6682. 14 caprolactam 14.1 Gas chromatographic method 14.1.1 Minimum detectable mass concentration The minimum detection mass of this method is 10ng, if 25mL water sample is taken for determination, the minimum detection mass concentration is 0.2mg/L. Under the analytical conditions of this method, cyclohexane, cyclohexanol and cyclohexanone do not interfere with the determination. 14.1.2 Principle Caprolactam in water can be quantified by gas chromatography with a hydrogen flame ionization detector after concentration and dissolution of carbon disulfide. 14.1.3 Reagents or materials 15 bis(2ethylhexyl)phthalate vinegar 15.1 solid phase extraction gas chromatography mass spectrometry 15.11 Minimum detection mass concentration If 1L of water samples are taken for determination, the minimum detectable mass concentrations of this method are: diquat, .2g/L; 2,6-trichlorophenol, 0.40pg/L; hexachlorobenzene, 0,25pg/L; leuconazole, 0,72g/L; pentachlorophenol, 0.99pg/L; lindane, 0,27pg/L; chlorothalonil, 0,42pg/L; methyl parathion, 0.30pg/L; heptachlor 0.34ug/L; malathion, 0.0g/L; toxaphene, 0.25g/L; parathion, 0.30ug/L; DDT, 0.35ug/L; di(2-ethylhexyl) phthalate, 0.41g/L; acephate, 1.01pg/L. This method is only used for the determination of domestic drinking water 15.1.2 Principle The organic matter in the water sample is adsorbed through a large volume solid phase extraction column with polymethacrylic acid cool-styrene as the adsorbent, and eluted with a small amount of methanol, ethyl acetate and dichloromethane, and the eluate is separated and determined by gas chromatography-mass spectrometry after dehydration, purification, concentration and volume fixation. The separation was determined by gas chromatography-mass spectrometry (GC-MS). The retention time and mass spectra of the analytes were used to characterize the analytes, and then quantified by the relative intensities of the quantitative ions of the analytes and the internal standard ions and the standard curve. Each water sample contained a known concentration of the internal standard compound, which was determined by the internal standard calibration procedure. 16 Microcystin 16.1 High performance liquid chromatography 16.1.1 Minimum detectable mass concentration The minimum detectable masses of this method are: microcystin-RR, 6 ng; microcystin-LR, 6 ng. If 5 L of water samples are taken for determination, the minimum detectable mass concentrations are: microcystin-RR, 0.06 g/L; microcystin-LR.06 g/L. 16.1.2 Principle Water samples

Foreword Introduction 1 Scope 2 Normative reference documents 3 Terms and definitions 4 Carbon tetrachloride 5 1,2-dichloroethane 6 1,1,1-trichloroethane 7 Vinyl chloride 8 1,1-Dichloroethylene 9 1,2-Dichloroethylene 10 Trichloroethylene 11 Tetrachloroethylene 12 Benzo[a]flower 13 Acryl Coolamine 14 caprolactam 15 bis(2ethylhexyl)phthalate vinegar 16 Microcystin

前言 本文件按照GB/T 1.12020《标准化工作导则第1部分:标准化文件的结构和起草规则》的规定起草 本文件是GB/T 5750《生活饮用水标准检验方法》的第8部分。GB/T 5750已经发布了以下部分 第1部分:总则; 第2部分:水样的采集与保存; 第3部分:水质分析质量控制; 第4部分:感官性状和物理指标 第5部分:无机非金属指标; 第6部分:金属和类金属指标: 第7部分:有机物综合指标; 第8部分:有机物指标: 第9部分:农药指标; 第10部分:消毒副产物指标; 第11部分:消毒剂指标; 第12部分:微生物指标: 第13部分:放射性指标。 本文件代替GB/T 5750.8-2006《生活饮用水标准检验方法有机物指标》和GB/T32470-2016《生活饮用水臭味物质土臭素和2-甲基异醇检验方法》。其中,将GB/T32470-2016全部内容纳人本文件76.1中,与GB/T 5750.8-2006相比，除结构调整和编辑性改动外,主要技术变化如下: a)增加了“术语和定义”(见第3章) b)增加了24个检验方法(见4.2,4.3,13,1,15.1,16,2、20,1,48,1,61,1,75,1,75,2、76,1,78.1、78,2_79.1_79.2,80.1,81.1,82,1,83,1,84.1,86,1,88,1,89,1,90.1): c)更改了1个检验方法(见21.2,2006年版的18.4);) d)删除了12个检验方法(见2006年版1,1,3,1,4,1,9,2,12,1,17,1,18,1,18,3,23,1,24,1,37.1、 44.1) 请注意本文件的某些内容可能涉及专利。本文件的发布机构不承担识别专利的责任 引言 GB/T 5750《生活饮用水标准检验方法》作为生活饮用水检验技术的推荐性国家标准与GB5749《生活饮用水卫生标准》配套,是GB5749的重要技术支撑,为贯彻实施GB5749,开展生活饮用水卫生安全性评价提供检验方法。 GB/T 5750由13个部分构成。 第1部分:总则。目的在于提供水质检验的基本原则和要求。 第2部分:水样的采集与保存。目的在于提供水样采集、保存、管理、运输和采样质量控制的基本原则、措施和要求。 第3部分:水质分析质量控制。目的在于提供水质检验检测实验室质量控制要求与方法 第4部分:感官性状和物理指标。目的在于提供感官性状和物理指标的相应检验方法 第5部分:无机非金属指标。目的在于提供无机非金属指标的相应检验方法 第6部分:金属和类金属指标。目的在于提供金属和类金属指标的相应检验方法 第7部分:有机物综合指标。目的在于提供有机物综合指标的相应检验方法 第8部分:有机物指标。目的在于提供有机物指标的相应检验方法。 第9部分:农药指标。目的在于提供农药指标的相应检验方法。 第10部分:消毒副产物指标。目的在于提供消毒副产物指标的相应检验方法 第11部分:消毒剂指标。目的在于提供消毒剂指标的相应检验方法 第12部分:微生物指标。目的在于提供微生物指标的相应检验方法 第13部分:放射性指标。目的在于提供放射性指标的相应检验方法 1范围 本文件描述了生活饮用水中四氯化碳、1,2-二氯乙烷1,1,1-三氯乙烷、氯乙烯、1,1-二氯乙烯1,2二氯乙烯、三氯乙烯、四氯乙烯、苯并[a]花、丙烯酷胺、已内酷胺、邻苯二甲酸二(2-乙基已基)、微囊菜毒素、乙肺、丙烯睛、丙烯醛、环氧氯丙烷、苯、甲苯、二甲苯、乙苯、异丙苯、氯苯、1,2-二氯苯、1,3-二氯苯、1,4-二氯苯、三氯苯、四氯苯、硝基苯、三硝基甲苯、二硝基苯、硝基氯苯、二硝基氯苯、氯丁二烯、苯乙烯、三乙胺、苯胺、二硫化碳、水合阱、松节油、叱院、苦味酸、丁基黄原酸、六氯丁二烯、二苯胺、二氯甲烷1,1-二氯乙烷、1,2-二氯丙烷、1,3-二氯丙烷、2,2-二氯丙烷,1,1,2-三氯乙烷、1,2,3-三氯丙烷、1,1,1,2四氯乙烷,1,1,2,2-四氯乙烷,1,2-二澳-3-氯丙烷,1,1-二氯丙烯,1,3-二氯丙烯1,2-二澳乙烯、1,2-二澳乙烷、1,2,4-三甲苯、1,3,5-三甲苯、丙苯、4-甲基异丙苯、丁苯、仲丁基苯、叔丁基苯、五氯苯、2-氯甲苯、4-氯甲苯、澳苯、蔡、双酚A、土臭素、2-甲基异获醇、五氯丙烷、丙烯酸、戊二醛、环烷酸、苯甲醚、茶酚、全氟辛酸、全氟辛烷磺酸、二甲基二硫醚、二甲基三硫醚、多环芳烃、多氯联苯、药品及个人护理品的测定方法和水源水中四氯化碳(毛细管柱气相色谱法)氯乙烯(毛细管柱气相色谱法)1,1-二氯乙烯(吹扫捕集气相色谱法),1,2-二氯乙烯(吹扫捕集气相色谱法)并[a]花、丙烯酷胺(气相色谱法)已内酷胺、微囊藻毒素(高效液相色谱法)、乙睛、丙烯睛、丙烯醛、苯(液液萃取毛细管柱气相色谱法)、甲苯(液液萃取毛细管柱气相色谱法),二甲苯(液液取毛细管柱气相色谱法)乙(液液取毛细管柱气相色谱法)、硝基苯、三硝基甲苯、二硝基苯、硝基氯苯、二硝基氯苯、氯丁二烯、苯乙烯(液液萃取毛细管柱气相色谱法)、三乙胺、苯胺、二硫化碳、水合胖、松节油、毗院、苦味酸、丁基黄原酸、土臭素、2-甲基异货醇、五氯丙烷、丙烯酸(离子色谱法)、戊二醛、环烷酸、二甲基二硫醚、二甲基三硫醚、多环芳烃、多氯联苯的测定方法。 本文件适用于生活饮用水中和(或)水源水中有机物指标的测定 2规范性引用文件 下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中,注日期的引用文件,仅该日期对应的版本适用于本文件;不注日期的引用文件,其最新版本(包括所有的修改单)适用于本文件。 GB/T 5750.1生活饮用水标准检验方法第1部分:总则 GB/T 5750.3生活饮用水标准检验方法第3部分:水质分析质量控制GB/T 5750.10-2023生活饮用水标准检验方法第10部分消毒副产物指标GB/T6682分析实验室用水规格和试验方法 3术语和定义 GB/T 5750.1GB/T 5750.3界定的术语和定义适用于本文件 4四氯化碳 4.1毛细管柱气相色谱法 4.1.1最低检测质量浓度 本方法的最低检测质量浓度分别为:三氯甲烷0.2g/L;四氯化碳.1g/L 4.1.2原理 水样置于密封的顶空瓶中,在一定温度下经一定时间的平衡，水中三氯甲烷、四氯化碳逸至上部空间,并在气液两相中达到动态平衡，此时，三氯甲烷、四氯化碳在气相中的浓度与其在液相中的浓度成正比。通过对气相中三氯甲烷、四氯化碳浓度的测定,可计算出水样中三氯甲烷、四氯化碳的浓度。 4.1.3试剂或材料 5 1,2-二氯乙烷 5.1吹扫捕集气相色谱质谱法 按4.2描述的方法测定。 5.2顶空毛细管柱气相色谱法(氢火焰检测器) 按21.2描述的方法测定 5.3顶空毛细管柱气相色谱法(电子捕获检测器) 按4.3描述的方法测定。 6 1,1,1-三氯乙烷 6.1 吹扫捕集气相色谱质谱法 按4.2描述的方法测定 6.2顶空毛细管柱气相色谱法 按4.3描述的方法测定 7氯乙烯 7.1毛细管柱气相色谱法 7.1.1最低检测质量浓度 若取水样100mL,取1mL液上气体进行色谱测定，最低检测质量浓度为1g/L。 8 1,1-二氯乙烯 8.1吹扫捕集气相色谱法 8.1.1 最低检测质量浓度 本方法的最低检测质量浓度分别为:1,1-二氯乙烯,0.02g/L;反-1,2-二氯乙烯,0.02g/L;顺-1, 2-二氯乙烯,0.02ug/L。吹脱气中的杂质，捕集器和管路中释放的有机物是污染的主要原因。因此，避免在吹扫-捕集系统使用非聚四氟乙烯管路、密封材料,或带橡胶组件的流量控制器。在采样、处理和运输过程中,需用纯水配制的试剂空白进行校正,经常烘烤和吹脱整个系统。 8.1.2原理 在室温下,惰性气体将在特制吹扫瓶中水样的1,1-二氯乙烯等挥发性有机物吹出,待测物被捕集器吸附。然后,经热解吸待测物由惰性气体带入气相色谱仪,进行分离和测定 8.1.3试剂或材料 8.1.3.1高纯氮[o(N)>99.999%] 8.1.3.2纯水:色谱检验无干扰组分 8.1.3.3抗坏血酸(C.H.O)。 9 1,2-二氯乙烯 9.1吹扫捕集气相色谱法 按8.1描述的方法测定 9.2吹扫捕集气相色谱质谱法 按4.2描述的方法测定。 9.3顶空毛细管柱气相色谱法 按4.3描述的方法测定 10三氯乙烯 10.1吹扫捕集气相色谱质谱法 按4.2描述的方法测定 10.2顶空毛细管柱气相色谱法 按4.3描述的方法测定 11 四氯乙烯 11.1吹扫捕集气相色谱质谱法 按4.2描述的方法测定 11.2顶空毛细管柱气相色谱法 按4.3描述的方法测定 12苯并[a]花 12.1高效液相色谱法(I) 12.1.1最低检测质量浓度 本方法最低检测质量为0.07ng,若取500水样测定，本方法最低检测质量度为1.4ng/L。 12.1.2原理 水中苯并[a]花及其他芳烃能被环已烷萃取,萃取液经活性氧化铝吸附净化,以苯洗脱、浓缩后,可用液相色谱-荧光检测器定量。 12.1.3试剂或材料 所用试剂和材料应进行空白试验,即通过全部操作过程，证明无干扰物质存在。所有试剂使用前均应采用0.45um滤膜过滤。 12.1.3.1超纯水;电阻率大于18.0MQ·cm。 12.1.3.2活性氧化铝:取250g100目200目层析用中性氧化铝(Al0;)于10C活化h,冷却后装 瓶，储于干燥器内，备用。 12.1.3.3盐酸溶液(1+19):取5mL盐酸(o2=1.19g/mL),加至95mL纯水中，混匀 12.1.3.4玻璃棉:用盐酸溶液(1+19)浸泡过夜，然后用纯水洗至中性。用氢氧化钠溶液浸泡过夜，纯水洗至中性，于105C烘干备用。 13丙烯酷胺 13.1高效液相色谱串联质谱法 13.1.1最低检测质量浓度 取100mL水样经提取后定容至10mL测定最低检测质量浓度为0.020g/L本方法仅用于生活饮用水的测定 13.1.2原理 水样通过活性炭固相萃取柱净化和富集，洗脱液经浓缩、定容和过滤后,采用液相色谱分离，串联质谱检测,同位素内标法定量。 13.1.3试剂 除非另有说明,本方法所用试剂均为分析纯,实验用水为GB/T6682规定的一级水。 14己内酷胺 14.1气相色谱法 14.1.1最低检测质量浓度 本方法最低检测质量为10ng,若取25mL水样测定，则最低检测质量浓度为0.2mg/L在本方法的分析条件下,环已烷环已醇和环已酮不干扰测定 14.1.2原理 水中己内酷胺经浓缩和二硫化碳溶解后,可用带氢火焰离子化检测器的气相色谱仪进行定量测定。14.1.3试剂或材料 15邻苯二甲酸二(2乙基已基)醋 15.1固相萃取气相色谱质谱法 15.11最低检测质量浓度 若取水样1L测定，本方法的最低检测质量浓度分别为:敌敌，.2g/L;2,6-三氯酚，0.40pg/L;六氯苯,0,25pg/L;乐果,0,72g/L;五氯酚,0.99pg/L;林丹,0,27pg/L;百菌清,0,42pg/L;甲基对硫磷,0.30pg/L;七氯,0.34ug/L;马拉硫磷,0.0g/L;毒死,0.25g/L;对硫磷,0.30ug/L;滴滴涕,0.35ug/L;邻苯二甲酸二(2-乙基已基),0.41g/L;澳氰菊,1.01pg/L。 本方法仅用于生活饮用水的测定 15.1.2原理 水样中有机物通过以聚甲基丙烯酸酷-苯乙烯为吸附剂的大体积固相萃取柱吸附，用少量甲醇、乙酸乙酷和二氯甲烷洗脱，洗脱液经脱水、净化提纯、浓缩定容后,用气相色谱质谱联用仪分离测定。根据待测物的保留时间和质谱图定性，再通过待测物的定量离子与内标定量离子的相对强度和标准曲线定量。每个水样中含有已知浓度的内标化合物，通过内标校正程序测定。 16微囊藻毒素 16.1高效液相色谱法 16.1.1最低检测质量浓度 本方法最低检测质量分别为:微囊藻毒素-RR,6ng;微囊藻毒素-LR,6ng。若取5L水样测定，则最低检测质量浓度分别为:微囊藻毒素-RR,0.06g/L;微囊藻毒素-LR.06g/L。16.1.2原理 水样过滤后，滤液(水样)经反相硅胶柱富集萃取浓缩,藻细胞(膜样)经冻融萃取，反相硅胶柱富集萃取浓缩后,分别用高效液相色谱分析。 17乙睛 17.1气相色谱法 17.1.1最低检测质量浓度 本方法最低检测质量为:乙睛,0.05ng;丙烯睛,0.05ng。若进样2;L,则最低检测质量浓度:乙睛0.025mg/L;丙烯睛,0.025mg/Lo在选定的色谱条件下，其他有机物不干扰 18丙烯睛 气相色谱法:按17.1描述的方法测定 19丙烯醛 气相色谱法:按GB/T 5750.10-2023中12.1描述的方法测定 20环氧氯丙烷 20.1气相色谱质谱法 20.1.1最低检测质量浓度 本方法环氧氯丙烷最低检测质量为0.06ng,若取1L水样富集取，取液旋转蒸发浓缩至1.0mL,则最低检测质量浓度为006g/L。 本方法仅用于生活饮用水的测定。 21苯 21.1液液萃取毛细管柱气相色谱法 21.1.1最低检测质量浓度 本方法最低检测质量分别为;苯,0.20ng;甲苯,0,24ng;乙苯,0,25ng;对二甲苯,0,24ng;间二甲米,0.25ng;邻二甲米,0,25ng;苯乙烯,0,25ng。若取200m水样处理后测定，则最低检测质量浓度分别为:苯,0,005mg/L;甲苯,0,006mg/L;乙苯,0.006mg/L;对二甲苯,0,006mg/L;间二甲苯.0.006mg/L;邻二甲苯,0.006mg/L;苯乙烯,0.006mg/L。 21.1.2原理 水中苯系物经二硫化碳萃取后,硫酸-磷酸混合酸除去醇、酷、醚等干扰物质，用气相色谱氢火焰离子化检测器测定,以相对保留时间定性,外标法定量。 22甲苯 22.1吹扫捕集气相色谱质谱法 按4.2描述的方法测定。 22.2液液萃取毛细管柱气相色谱法 按21.1描述的方法测定。 22.3顶空毛细管柱气相色谱法 按21.2描述的方法测定 23二甲苯 23.1吹扫捕集气相色谱质谱法按4.2描述的方法测定