茅草枯检测

T/FQIA 004-2022 茶叶中茅草枯、草芽畏残留量的测定 液相色谱-串联质谱法

1  范围     本文件规定了茶叶中茅草枯、草芽畏残留量的液相色谱—串联质谱测定方法。     本文件适用于绿茶、红茶、白茶、乌龙茶中茅草枯、草芽畏残留量的测定，其它茶叶可参照执行。 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 6682  分析实验室用水规格和试验方法     GB/T 8303  茶 磨碎试样的制备及其干物质含量测定 3  术语和定义     本文件没有需要界定的术语和定义。 4  原理     茶叶样品用水提取，提取液经固相萃取净化后，以液相色谱—串联质谱仪检测，外标法定量。 主要内容    目  次 前言 …………………………………………………………………………………………………………Ⅱ 1  范围 ………………………………………………………………………………………………………1 2  规范性引用文件 ………………………………………………………………………………………1 3  术语和定义………………………………………………………………………………………………1 4  原理…………………………………………………………………………………………………………1 5  试剂和材料………………………………………………………………………………………………1 5.1 试剂…………………………………………………………………………………………..................1 5.2  溶液配制………………………………………………………………………………………………1 5.3  标准品…………………………………………………………………………………………………..2 5.4  标准溶液配制…………………………………………………………………………………………2 5.5  材料……………………………………………………………………………………………………....2 6  仪器和设备………………………………………………………………………………………………2 7  试样制备和保存…………………………………………………………………………………………2 7.1  试样制备………………………………………………………………………………………………2 7.2  试样保存………………………………………………………………………………………………3 8  分析步骤…………………………………………………………………………………………………3 8.1   前处理………………………………………………………………………………………………...3 8.2   测定…………………………………………………………………………………………………....3 8.3   试样溶液的测定……………………………………………………………………………………5 8.4   平行试验……………………………………………………………………………………………..5 8.5   空白试验……………………………………………………………………………………………..5 9  结果计算…………………………………………………………………………………………………5 10  精密度……………………………………………………………………………………………………5 11  其他………………………………………………………………………………………………………5 附 录 A （资料性）茅草枯、草芽畏的多反应监测（MRM）色谱图……………………6 附 录 B  (资料性) 精密度要求……………………………………………………………………………7

Determination of Dalapon, 2,3,6-TBA residues in tea by liquid chromatography - tandem mass spectrometry method

KS I ISO 23631-2007 水质.对茅草枯、三氯乙酸和选定的含卤素醋酸的测定.液.液萃取和衍生后的气相色谱法(GC.ECD和/或GC.MS检测法)

이 규격은 디아조메탄을 사용하여 액체-액체 추출 및 유도체화 반응 후에, 가스 크로마토그래

Water quality－Determination of dalapon, trichloroacetic acid and selected haloacetic acids－Method using gas chromatography(GC-ECD and/or GC-MS detection) after liquid-liquid extraction and derivatization

KS I ISO 23631-2007 水质.对茅草枯、三氯乙酸和选定的含卤素醋酸的测定.液.液萃取和衍生后的气相色谱法(GC.ECD和/或GC.MS检测法)

이 규격은 디아조메탄을 사용하여 액체-액체 추출 및 유도체화 반응 후에, 가스 크로마토그래

Water quality－Determination of dalapon, trichloroacetic acid and selected haloacetic acids－Method using gas chromatography(GC-ECD and/or GC-MS detection) after liquid-liquid extraction and derivatization

DIN EN ISO 23631 Berichtigung 1-2007 水质.对茅草枯、三氯乙酸和选定的含卤素醋酸的测定.液-液萃取和衍生后的气相色谱法(GC-ECD和/或GC-MS检测法)

Water quality - Determination of dalapon, trichloroacetic acid and selected haloacetic acids - Method using gas chromatography (GC-ECD and/or GC-MS detection) after liquid-liquid extraction and derivatization (ISO 23631:2006); German version EN ISO 23631:

NF T90-182-2006 水质.液-液萃取和衍生后使用气相色谱法(GC-ECD和/或GC-MS检测法)测定茅草枯、三氯乙酸和选定的含卤素醋酸

Water quality - Determination of dalapon, trichloroacetic acid and selected haloacetic acids - Method using gas chromatography (GCD-ECD and/or GC-MS detection) after liquid-liquid extraction and derivatization.

DIN EN ISO 23631-2006 水质.茅草枯、三氯乙酸和选定的盐杆菌的测定.液-液萃取和衍生的气相色谱法(GC-ECD和/或GC-MS检测)(ISO 23631-2006)

The project specifies the determination of dalapon, trichloroactic acids (TCA) and selected additional halogenated acetic acids after liquid-liquid extract, derivatization and gas chromatography with MS or ECD detection. The method is applicable to mass concentrations 0,05 ?l.#,,#

Water quality - Determination of dalapon, trichloroacetic acid and selected haloacetic acids - Method using gas chromatography (GC-ECD and/or GC-MS detection) after liquid-liquid extraction and derivatization (ISO 23631:2006); English version of DIN EN IS

BS EN ISO 23631-2006 水质.对茅草枯、三氯乙酸和选定的含卤素醋酸的测定.液-液萃取和衍生后的气相色谱法(GC-ECD和/或GC-MS检测法)

This International Standard specifies a method for the determination of dalapon, trichloroacetic acid (TCA) and selected haloacetic acids (see Table 1) in ground water and drinking water by gas chromatography (GC-ECD and/or GC-MS detection) after liquid-liquid-extraction and derivatization using diazomethane. Depending on the matrix, the method is applicable to a concentration range from 0,5 µg/l to 10 µg/l. The validated reporting limit of TCA and dalapon is about 0,05 µg/l (see Table C.1). Detection by electron-capture detector (ECD) in general leads to lower detection limits. Detection by mass spectrometry (MS) allows analyte identification. This method may be applicable as well to compounds not mentioned in Table 1 or to other types of water. However, it is necessary to verify the applicability of this method for these special cases.

Water quality - Determination of dalapon, trichloroacetic acid and selected haloacetic acids - Method using gas chromatography (GC-ECD and/or GCMS detection) after liquid-liquid extraction and derivatization

EN ISO 23631-2006 水质.茅草枯,三氯乙酸和选定的盐杆菌的测定.液-液萃取和衍生的气相色谱法(GC-ECD和/或GC-MS检测).合并勘误表-2007年2月

Water quality - Determination of dalapon, trichloroacetic acid and selected haloacetic acids - Method using gas chromatography (GC-ECD and/or GC-MS detection) after liquidliquid extraction and derivatization (Incorporating corrigendum February 2007)

ISO 23631-2006 水质.对茅草枯、三氯乙酸和选定的含卤素醋酸的测定.液-液萃取和衍生后的气相色谱法(GC-ECD和/或GC-MS检测法)

This International Standard specifies a method for the determination of dalapon, trichloroacetic acid (TCA) and selected haloacetic acids (see Table 1) in ground water and drinking water by gas chromatography (GC-ECD and/or GC-MS detection) after liquid-liquid-extraction and derivatization using diazomethane. Depending on the matrix, the method is applicable to a concentration range from 0,5 µg/l to 10 µg/l. The validated reporting limit of TCA and dalapon is about 0,05 µg/l (see Table C.1). Detection by electron-capture detector (ECD) in general leads to lower detection limits. Detection by mass spectrometry (MS) allows analyte identification. This method may be applicable as well to compounds not mentioned in Table 1 or to other types of water. However, it is necessary to verify the applicability of this method for these special cases.

Water quality - Determination of dalapon, trichloroacetic acid and selected haloacetic acids - Method using gas chromatography (GC-ECD and/or GC-MS detection) after liquid-liquid extraction and derivatization

SNI 06-2558-1992 工业级茅草枯. 规范与测试方法

Technical grade dalapon, Specification and test method

ANSI K62.9-1957 茅草枯(dalapon)－(除草剂)通用名称

Provides the accepted common name for the chemical compound given. Includes the use of the common name and the physical and chemical properties of the chemical compound.

Common Name for the Pest Control Chemical 2,2-Dichloropropionic Acid Dalapon