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Die Norm ASTM D7645-23 15.4.2023 Ansicht

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ASTM D7645-23

Standard Test Method for Determination of Aldicarb, Aldicarb Sulfone, Aldicarb Sulfoxide, Carbofuran, Methomyl, Oxamyl, and Thiofanox in Water by Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)

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NORM herausgegeben am 15.4.2023

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Informationen über die Norm:

Bezeichnung normen: ASTM D7645-23
Ausgabedatum normen: 15.4.2023
SKU: NS-1142958
Zahl der Seiten: 14
Gewicht ca.: 42 g (0.09 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM

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Kategorie - ähnliche Normen:

Examination of water for chemical substances

Die Annotation des Normtextes ASTM D7645-23 :

Keywords:

carbamates, liquid chromatography, mass spectrometry, water,, ICS Number Code 13.060.50 (Examination of water for chemical substances)

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Significance and Use

5.1?This test method has been developed by U.S. EPA Region 5 Chicago Regional Laboratory (CRL).

5.2?The 5.3?This test method has been investigated for use with reagent, surface, and drinking water for the selected carbamates: aldicarb, aldicarb sulfone, aldicarb sulfoxide, carbofuran, methomyl, oxamyl, and thiofanox.

1. Scope

1.1?This test method covers the determination of aldicarb, aldicarb sulfone, aldicarb sulfoxide, carbofuran, methomyl, oxamyl, and thiofanox (referred to collectively as carbamates in this test method) in water by direct injection using liquid chromatography (LC) and detected with tandem mass spectrometry (MS/MS). These analytes are qualitatively and quantitatively determined by this test method. This test method adheres to multiple reaction monitoring (MRM) mass spectrometry.

1.2?The Detection Verification Level (DVL) and Reporting Range for the carbamates are listed in Table 1.

1.2.1?The DVL is required to be at a concentration at least 3 times below the Reporting Limit (RL) and have a signal/noise ratio greater than 3:1. Fig. 1 displays the signal/noise ratios of the primary single reaction monitoring (SRM) transitions, and Fig. 2 displays the confirmatory SRM transitions at the DVLs for the carbamates.

1.3?UnitsThe values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4?This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

2. Referenced Documents

	Determination of Selected Organic Contaminants in Drinking Water by Direct Aqueous Injection-Liquid Chromatography/Tandem Mass Spectrometry (DAI-LC/MS/MS)
E2554-18e1	Standard Practice for Estimating and Monitoring the Uncertainty of Test Results of a Test Method Using Control Chart Techniques (Includes all amendments and changes 10/7/2019).
EPA Method 531	Measurement of N-Methyl Carbamoyloximes and N-Methyl Carbamates in Drinking Water by Direct Aqueous Injection HPLC with Post Column Derivatization
D4841-88(2018)	Standard Practice for Estimation of Holding Time for Water Samples Containing Organic and Inorganic Constituents
D3856-11	Standard Guide for Management Systems in Laboratories Engaged in Analysis of Water
D3694-96(2017)	Standard Practices for Preparation of Sample Containers and for Preservation of Organic Constituents
D1129-13(2020)e2	Standard Terminology Relating to Water (Includes all amendments and changes 2/14/2024).
D1193-06(2018)	Standard Specification for Reagent Water
	Test Methods for Evaluating Solid Waste, Physical/Chemical Methods
D5847-22	Standard Practice for Writing Quality Control Specifications for Standard Test Methods for Water Analysis
D2777-21	Standard Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D19 on Water
EPA Method 531.2

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