HJ 956-2018
Determination of benzo[a]pyrene in ambient air by high performance liquid chromatography (English Version)

Standard No.

HJ 956-2018

Language

Chinese, Available in English version

Release Date

2018

Published By

Professional Standard - Environmental Protection

Latest

HJ 956-2018

Replace

GBT 15439-1995

Scope

This standard specifies a high-performance liquid chromatography method for the determination of benzo[a]pyrene in air particulate matter in ambient air and fugitive emission monitoring points. This standard is applicable to the determination of benzo[a]pyrene in ambient air and air particulate matter (PM2.5, PM10 or TSP, etc.) at unorganized emission monitoring points. Extracting with dichloromethane, when the constant volume is 1.0 ml, the detection amount of the method is 0.008 mg, and the lower limit of the method is 0.032 mg; when extracting with 5.0 ml acetonitrile, the detection amount of the method is 0.040 mg, and the lower limit of the method is 0.040 mg. 0.160 mg. When the sampling volume is 144 m3 (under standard conditions), extracted with dichloromethane, and the constant volume is 1.0 ml, the detection limit of the method is 0.1 3 3 ng/m, and the lower limit of determination is 0.4 ng/m; when the sampling volume When the volume is 6 m3 (under standard conditions), extracted with methylene chloride, and the constant volume is 1.0 ml, the detection limit of the method is 1.3 ng/m3, and the lower limit of determination is 5.2 ng/m3. When the sampling volume is 1 512 m3 (under standard conditions), take one-tenth of the filter membrane and extract it with dichloromethane. When the constant volume is 1.0 ml, the detection limit of method 3 is 0.1 ng/m, and the lower limit of determination is 0.4 ng/m3; when extracted with 5.0 ml acetonitrile, the detection limit of the method is 0.3 ng/m3, and the lower limit of determination is 1.2 ng/m3. 2

HJ 956-2018 history

• 2018 HJ 956-2018 Determination of benzo[a]pyrene in ambient air by high performance liquid chromatography