GB/T 5009.19-2008 Translated English of Chinese Standard. (GBT 5009.19-2008, GB/T5009.19-2008, GBT5009.19-2008): Determination of organochlorine pesticide multiresidues in foodshttps://www.chinesestandard.net, 2018 M11 16 - 16 pages Method One of this Standard specifies the determination of hexachlorocyclohexane (HCH), dichloro-diphenyl- |
Contents
| 3 | |
Scope | 5 |
Reagents | 6 |
Analysis steps | 7 |
Result calculation | 9 |
Precision | 10 |
Apparatus | 11 |
Result calculation | 12 |
Precision | 13 |
Annex A informative Detection limit of different matrix specimens | 14 |
Annex B informative Chromatogram of organochlorine pesticide mixed standard solution | 15 |
informative Method uncertainty | 16 |
Common terms and phrases
20g of specimen 30mL of petroleum 40mL of acetone 5mL of water 6g of sodium Add 40mL Add 5mL Add 6g Aldrin amount of water analytically pure anhydrous sodium sulfate Annex arithmetic mean automatic gel permeation capture detector method chlordane Chromatogram of organochlorine cis-chlordane content of specimen cyclohexane 1+1 detection limits Dieldrin egg product specimen Electron capture detector endosulfan Endosulfansulfate Endrin Endrinaldehyde Endrinketone ethyl acetate ethyl acetate-cyclohexane 1+1 extraction GB/T GC analysis gel permeation chromatography Heptachlor Heptachlorepoxide hexachlorobenzene hexachlorocyclohexane hexane injection volume mg/L Mirex mixed standard solution N-hexane nearest of 0.01g Nitrogen organochlorine pesticide mixed Oscillate 0.5min Oscillate 30min Oxychlordane PCNB PCPs Peaking sequence permeation chromatography system pesticide mixed standard petroleum ether r/min for 15min re-distilled rotary evaporation bottle Set volume sodium chloride standard stock solution sulfuric acid supernatant for GC Take supernatant trans-chlordane volume to 5mL volumetric flask water content water the amount Weigh 20g