3,4,5,6-Tetrahydro-2-pyrimidinethiol (THP) ,0.1 mg/mL in 0.1% w/v DTT in Ethyl acetate

3,4,5,6-四氢-2-嘧啶硫醇

6组分甲基衍生物混标, Methyl derivatives,Varied conc. in Methanol

甲基衍生物质量控制样品, Quality Control Sample Methyl Derivatives,Varied conc. in MtBE

非衍生的氯化酸, Underivatized Chlorinated Acids,Varied conc. in MeOH

2,4-Dichlorophenylacetic methyl ester ,5.0 mg/mL in MtBE

2,4-二氯甲基酯

524方法VOC内标(4-溴氟苯;1,2-二氯苯-D4;氟苯), Fortification Solution,2.0 mg/mL in MeOH

524.2方法增补24组分挥发性有机物, Additions to Method 524.2,2.0 mg/mL in MeOH

6组分EPA 内标标准溶液, EPA Method 524.3 Internal Standard,2.0 mg/mL in Methanol

Regulated Semi-Volatiles Mixture,500 μg/mL in Ethyl acetate

11种农药混标A, Method 527 Pesticide Standard A,500 μg/mL in Methanol