N-Methyl-N'-nitro-N-nitrosoguanidine

N-甲基-N'-硝基-N-亚硝基胍

6-Hydroxychrysene

6-羟基屈

4-Chloro-o-toluidine,1000 μg/mL in AcCN

4-氯-2-甲基苯胺

4,4'-Thiodianiline,10 μg/mL in Ethyl acetate

4,4-二氨基二苯硫醚

3-Chloro-o-toluidine,100 μg/mL in AcCN

3-氯-2-甲基苯胺

残差复合材料混合, Residuals Composite Mix,50.0 mg/mL in Dichloromethane

标准品, Custom 525 Mix @Varied in Dichloromethane

6种邻苯二甲酸酯混标,梯度浓度溶于二氯甲烷(GB 18581-2020/GB 22048-2008), Custom Phthalate Standard Varied conc Dichloromethane

5种挥发性有机物混标,1000μg/mL溶于水(适用HJ679), Custom VOC Standard 1000 μg/mL in water

客户定制VOC混标, Custom VOC Standard