HJ 894-2017 Determination of extractable petroleum hydrocarbons (C10-C40) in water qualitygas chromatographyLaw (Draft)
This standard specifies the gas chromatography method for determining the extractable petroleum hydrocarbons (C10-C40) in water.
This standard is applicable to the determination of extractable petroleum hydrocarbons (C10-C40) in surface water, groundwater, domestic sewage, industrial wastewater, and seawater.

Extractable petroleum hydrocarbons (C10-C40) include aliphatic hydrocarbons, cycloaliphatic hydrocarbons, aromatic hydrocarbons, or alkylated aromatic hydrocarbons
When the sampling volume is 1000 ml, the detection limit of the method is 0.01 mg/L, and the lower limit of determination is 0.04 mg/L.

Gas chromatography analysis of water quality extractable petroleum hydrocarbons related instrument configuration:

1. GC-7890 Gas Chromatography (FID) Detector Capillary Injection System

2. Concentration device: rotary evaporation device or nitrogen blower and other concentration devices

3. Silicon magnesium purification column