ASTM D7644
Standard Test Method for Determination of Bromadiolone, Brodifacoum, Diphacinone and Warfarin in Water by Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
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About This Item
ASTM D7644 is a laboratory test method for determining bromadiolone, brodifacoum, diphacinone, and warfarin in water by liquid chromatography/tandem mass spectrometry (LC/MS/MS). It provides a focused technical approach for measuring these compounds with greater specificity than many broader screening methods. For laboratories and organizations working with water analysis, ASTM D7644 supports more consistent testing, clearer data interpretation, and a standardized basis for reporting results tied to these target analytes.
Purpose of ASTM D7644
The purpose of ASTM D7644 is to define a standardized method for detecting and measuring selected rodenticides in water using LC/MS/MS. By specifying the analytes and instrumental approach, the standard helps create a consistent framework for analytical testing. This is useful when results must be comparable across laboratories, projects, or procurement requirements. ASTM D7644 gives users a clear technical reference for evaluating water samples for bromadiolone, brodifacoum, diphacinone, and warfarin.
Common use cases of ASTM D7644
ASTM D7644 is commonly used in analytical laboratories that test water for specific rodenticide residues. It may support environmental monitoring, compliance-related sampling, or product and process evaluation where LC/MS/MS analysis is appropriate. The standard is also useful in quality control workflows that require a defined method for target-compound determination in water. Because it focuses on a limited set of analytes, it is especially relevant when precise identification and measurement are more important than broad screening.
Why ASTM D7644 matters
ASTM D7644 matters because standardized test methods improve consistency, traceability, and confidence in analytical results. In practice, that can reduce ambiguity during method selection, procurement, and reporting. A clear ASTM standard helps laboratories align testing practices and supports more reliable comparison of results over time or between sites. For organizations that need defensible water data, ASTM D7644 provides an established technical basis for measuring these compounds using LC/MS/MS.
- LC/MS/MS-based water analysis
- Targeted determination of four rodenticides
- Standardized laboratory testing workflow
- Supports consistent reporting and comparison
- Publication Date: 2023-06-02
- Publisher: ASTM
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