玺标（上海）科技基体标物/质控样品：甲醇中27种卤代烃混标GB/T5750.8-2023ST-023-01A-44A不同浓度瓶1ml现货GB/T5750.8-2023

玺标（上海）科技基体标物/质控样品：甲醇中55种VOC混标GB/T5750.8-2023ST-023-01A-43A1000μg/ml瓶1ml现货GB/T5750.8-2023

玺标（上海）科技基体标物/质控样品：1%氨水中8种环烷酸混标GB/T5750.8-2023ST-023-01A-41A不同浓度瓶1ml现货GB/T5750.8-2023

玺标（上海）科技基体标物/质控样品：甲醇中8种亚硝胺类混标GB/T5750.8-2023ST-023-01A-39A100μg/ml瓶1ml现货GB/T5750.8-2023

玺标（上海）科技基体标物/质控样品：水中5种卤乙酸混标GB/T5750.8-2023ST-023-01A-35A1000μg/ml瓶1ml现货GB/T5750.8-2023

玺标（上海）科技基体标物/质控样品：甲醇中6种消毒混标GB/T5750.8-2023ST-023-01A-33A1000μg/ml瓶1ml现货GB/T5750.8-2023