Ethylene thiourea ,0.1 mg/mL in 0.1% w/v DTT in Ethyl acetate

2-咪唑啉硫酮/乙烯基硫脲

6组分非衍生分析物, Underivatized Analytes,Varied conc. in Methanol

EPA154.4除草剂甲酯混合标准品, Quality Control Sample Methyl Derivatives,Varied conc. in MtBE

性能检测溶液, Performance Check Solution,Varied conc. in MtBE

除草剂中甲基衍生物混标, Regulated Herbicide Methyl Derivatives Mix,Varied conc. in MtBE

EPA分析方法521 亚硝酸胺混标(7组分), EPA Method 521 Analyte Stock Solution,200 μg/mL in methylene chloride

EPA方法524.3 内标, EPA Method 524.3 Internal Standard,2.0 mg/mL in Methanol

标准品, EPA Method 524.3 Internal/Surrogate Std.,2.0 mg/mL in Methanol

EPA525方法内标标准(4组分)(苊-D10/屈-D12/苝-D12/菲-D10)(HJ 867-2017/HJ 1023-2019内标), Method 525-Internal Standard,2.0 mg/mL in CH2Cl2

原发性稀释标准品, Primary Dilution Standard,200 μg/mL in Ethyl acetate