定制ICP-MS标准品, Custom ICP-MS Standard @ 100 μg/mL in 95% water 5% Nitric acid tr Hydrofluoric acid

4种胺类离子色谱混标,梯度浓度溶于水(HJ 1076-2019), Custom Chloride Standard @ Varied Conc.in Water

标准品, ASTM Standard D6584 Level 3 (without IS),Varied Conc. in Pyridine

标准品, IC multi-element standard V,Varied conc. in Water

标准品, Spark-Ignition Trace Oxygenates SET

分散黄3, Disperse Yellow 3,100 μg/mL in Methanol

Direct Black 38,100 μg/mL in Methanol

氯唑黑

标准品, Acid Red 26,100 μg/mL in Methanol

Solvent Red 19

标准品

FD &C Blue 2

标准品