ASTM D7485
Standard Test Method for Determination of Nonylphenol, p-tert-Octylphenol, Nonylphenol Monoethoxylate and Nonylphenol Diethoxylate in Environmental Waters by Liquid Chromatography/Tandem Mass Spectrometry
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About This Item
ASTM D7485 is a test method for determining nonylphenol, p-tert-octylphenol, nonylphenol monoethoxylate, and nonylphenol diethoxylate in environmental waters using liquid chromatography/tandem mass spectrometry. It is designed to support reliable analysis of these target compounds in water samples, helping laboratories generate consistent results for monitoring and evaluation. By defining a standardized analytical approach, the method supports more comparable data across testing programs and quality-controlled environmental measurements.
ASTM D7485 standard overview
This ASTM standard provides a formal test method centered on LC/MS/MS analysis for selected alkylphenol-related compounds in environmental waters. ASTM D7485 focuses on identifying and measuring the named analytes with a laboratory technique suited to trace-level chemical determination. As a technical document, it is most relevant to laboratories that need a consistent procedure for sample analysis, instrument-based detection, and reporting of results in a controlled testing environment.
Where is ASTM D7485 used?
The standard is commonly used in environmental testing laboratories that analyze water samples for specific organic contaminants. It may support routine monitoring, method-based quality control, and analytical work involving surface water, wastewater, or similar environmental water matrices. ASTM D7485 is also useful where LC/MS/MS instrumentation is used to evaluate the presence of these compounds and where consistent, defensible results are needed for compliance-related or investigative testing.
Practical importance of ASTM D7485
In practice, this standard helps laboratories and stakeholders apply a recognized method for targeted chemical analysis in water. ASTM D7485 can improve consistency in testing, support procurement decisions for analytical services, and reduce uncertainty when comparing results across sites or programs. It is especially valuable when documenting the presence of specific compounds and when reliable, repeatable measurements are important for environmental assessment and quality assurance.
- LC/MS/MS-based water analysis
- Target analytes: nonylphenol and related compounds
- Environmental water testing workflows
- Laboratory consistency and data comparability
- Quality control for analytical results
- Publication Date: 2023-05-18
- Publisher: ASTM
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