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

2种内标, Internal Standard,Varied conc. in Methylene chloride

替代标准品, Surrogate Standard,Varied conc. in Methanol

替代标准品, Surrogate Standard,Varied conc. in Methanol