麦克林 aladdin 罗恩 leyan/乐研 玻尔 Greagent Alfa sigma-aldrich

99% ≥99.0%AR 99+% ≥99.0%ACSreagent, ≥99.0%特优级 99+%ACS reagent AR ≥99.0% 特优级 ≥99.0% 99.9% metals basis 99.9%（高纯试剂） ≥99.95% trace metals 99.99% metals basis 99.99%（高纯试剂） 99.999% metals basis 99.999% (metals basis) 99.999% AR for analysis, 99+%RG powder, extra pure, 99%RG Puratronic®,99.999%(metals basis) for analysis ACSACS pure, 98%RG ACS AR,99.0% 35.0-38.0% Cu basisreagentgrade, 35.0-38.0% Cu basis,reagentgrade

1kg 2kg 2.5kg 5g 5G 5kg 5GR 10g 10kg 12X500g 20×500g 25g 25kg 25kg(纸板桶) 50g 50G 100G 100g 100gR 250g 250gR 500g 500gR 1000g