HJ605-2011 Application "Determination of volatile organic compounds in soil and sediment - Purge trap gas chromatography-mass spectrometry method"

2023-04-10

HJ605-2011 Application
of "Determination of Volatile Organic Compounds in Soil and Sediments, Purge and Trap-Gas Chromatography-Mass Spectrometry"

Experimental instruments

AutoTP-93 Automatic Purge and Trap Instrument, Gas Chromatography and Mass Chromatography EI Source, Column: DB624 30m*0.25mm*1.4um

Method conditions

GC/MS instrument conditions: injection port temperature: 220 °C, column flow: 1.2ml/min, split ratio: 20:1, column temperature conditions: initial temperature: 38 °C (3min), 8 °C/min to 130 °C (0min), then 15 °C/min to 240 °C (5min),
full scan mode,

scanning range: 35~270amu; Interface temperature 280°C Purge and capture conditions: purge flow rate 40ml/min, purge time: 10min, purge temperature: 40°C, primary pre-desorption temperature: 150 °C, time: 15 seconds, secondary pre-desorption temperature: 250 °C, time: 15 seconds, desorption temperature: 300 °C
, time: 60 seconds,

injection time: 300 seconds.
Transmission tube temperature: 150°C. Water removal temperature: 280 °C, activation temperature: 310 °C, activation flow 200ml/min,
activation time: 10min