• ASTM D7731-17

ASTM D7731-17

Standard Test Method for Determination of Dipropylene Glycol Monobutyl Ether and Ethylene Glycol Monobutyl Ether in Sea Water by Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)

ASTM International, 12/15/2017

Publisher: ASTM

File Format: PDF

$24.00$48.00


Published:15/12/2017

Pages:10

File Size:1 file , 240 KB

Note:This product is unavailable in Russia, Ukraine, Belarus

1.1 This test method covers the determination of dipropylene glycol monobutyl ether (DPGBE) and ethylene glycol monobutyl ether (EGBE) in sea water by direct injection using liquid chromatography (LC) and detection with tandem mass spectrometry (MS/MS). These analytes are qualitatively and quantitatively determined by this test method. This test method adheres to selected reaction monitoring (SRM) mass spectrometry.

1.2 The detection verification level (DVL) and reporting range for DPGBE and EGBE 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 and Fig. 2 display the signal/noise ratio of the single reaction monitoring (SRM) transition.

FIG. 1 Detection Verification Level Signal/Noise Ratio

Detection Verification Level Signal/Noise RatioDetection Verification Level Signal/Noise Ratio

FIG. 2 Reporting Level (Calibration Standard) Signal/Noise Ratio

Reporting Level (Calibration Standard) Signal/Noise
 RatioReporting Level (Calibration Standard) Signal/Noise
 Ratio

1.2.2 The reporting limit is the concentration of the Level 1 calibration standard as shown in Table 4 for DPGBE and EGBE, taking into account the 20 % sample preparation dilution factor.

1.3 The 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.

More ASTM standard pdf

ASTM B263-04(2010)

ASTM B263-04(2010)

Standard Test Method for Determination of Cross-Sectional Area of Stranded Conductors

$26.00 $52.00

ASTM D3241-98

ASTM D3241-98

Standard Test Method for Thermal Oxidation Stability of Aviation Turbine Fuels (JFTOT Procedure)

$32.00 $65.00

ASTM B494/B494M-98

ASTM B494/B494M-98

Standard Specification for Primary Zirconium

$25.00 $50.00

ASTM A307-10

ASTM A307-10

Standard Specification for Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength

$30.00 $60.00