| ExperimentID |
EXA000309 |
| ChemicalID |
CH0001627
|
| Chemical Name |
Valproic acid |
| Official Method |
No |
| Chromatography |
GC |
| Chromatography mfr. |
TRACE GU Ultra, Thermo Fisher Scientific; 7890B, Agilent |
| Column |
J&W DB-5ms 30m x 0.25mm, 0.25μm |
| Column mfr. |
Agilent |
| Detector |
MS |
| Detector mfr. |
TSQ Quantum, Thermo Fisher Scientific; JMS-Q1500, JEOL |
| Ionization |
SIM-EI |
| Extraction |
SPE |
| Extraction Details |
pH adjustment: pH 3; Sep-Pak Plus PS-2 10mL/min.; Eluted with Dichloromethane |
| Clean-up 1st |
Washing |
| Clean-up 1st Details |
Cartridge: Washed with purified water |
| Clean-up 2nd |
Column cleanup |
| Clean-up 2nd Details |
Supelclean LC-Si; Dichloromethane/Hexane (30:70) 10mL; Eluted with Dichloromethane/hexane (70:30) 10mL |
| Clean-up Spike |
|
| Syringe Spike |
Naphthalene-d8 |
| Derivatization |
N-Methyl-N-tert-(butyldimethylsilyl)trifluoroacetamide |
| Recovery Correction |
|
| Instrument Detection Limit |
|
| Instrument Quantification Limit |
|
| Method Detection Limit |
3.1 ng/L |
| Method Quantification Limit |
|
| Repeatability |
|
| Standard |
|
| Recovery (CRM) |
|
| Recovery (spiked) |
|
| Recovery (IS) |
|
| Protocol |
https://www.env.go.jp/chemi/kurohon/2020/shosai/5_1_2.pdf |
| Remarks |
Analysis method: p.8 |
| RegisterDate |
2022/1/25 |
| UpdateDate |
2022/1/25 |
