Sigma-Aldrich
二氯甲烷, anhydrous, ≥99.8%, contains 40-150 ppm amylene as stabilizer
Sigma-Aldrich
二氯甲烷, suitable for HPLC, ≥99.8%, contains amylene as stabilizer
Supelco
甲酸铵, eluent additive for LC-MS, LiChropur™, ≥99.0%
Sigma-Aldrich
氢氧化钠, ACS reagent, ≥97.0%, pellets
Sigma-Aldrich
二氯甲烷, contains 40-150 ppm amylene as stabilizer, ACS reagent, ≥99.5%
Sigma-Aldrich
氢氧化钠, reagent grade, ≥98%, pellets (anhydrous)
Sigma-Aldrich
二氯甲烷, HPLC Plus, for HPLC, GC, and residue analysis, ≥99.9%, contains 50-150 ppm amylene as stabilizer
Sigma-Aldrich
氢氧化钠 溶液, 50% in H2O
Sigma-Aldrich
氢氧化钠 溶液, BioUltra, for molecular biology, 10 M in H2O
Sigma-Aldrich
氢氧化钠 溶液, 1.0 N, BioReagent, suitable for cell culture
Sigma-Aldrich
甲酸铵, reagent grade, 97%
Sigma-Aldrich
氢氧化钠, BioXtra, ≥98% (acidimetric), pellets (anhydrous)
Sigma-Aldrich
甲酸铵, ≥99.995% trace metals basis
Sigma-Aldrich
氢氧化钠, puriss., meets analytical specification of Ph. Eur., BP, NF, E524, 98-100.5%, pellets
Sigma-Aldrich
氢氧化钠, reagent grade, 97%, powder
Sigma-Aldrich
甲酸铵, BioUltra, ≥99.0% (calc. based on dry substance, NT)
Supelco
氢氧化钠 溶液, 49-51% in water, eluent for IC
Sigma-Aldrich
二氯甲烷, puriss. p.a., ACS reagent, reag. ISO, ≥99.9% (GC)
Supelco
氢氧化钠溶液, 0.1 M NaOH in water (0.1N), Eluent concentrate for IC
Supelco
二氯甲烷, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
二氯甲烷, ACS reagent, ≥99.5%, contains 40-150 ppm amylene as stabilizer
Sigma-Aldrich
甲酸铵 溶液, BioUltra, 10 M in H2O
Sigma-Aldrich
氢氧化钠 溶液, 5.0 M
Supelco
二氯甲烷, analytical standard
Sigma-Aldrich
氢氧化钠, puriss. p.a., ACS reagent, reag. Ph. Eur., K ≤0.02%, ≥98%, pellets
Sigma-Aldrich
氢氧化钠, pellets, semiconductor grade, 99.99% trace metals basis
Sigma-Aldrich
二氯甲烷, puriss., meets analytical specification of Ph. Eur., NF, ≥99% (GC)
Sigma-Aldrich
氢氧化钠, puriss. p.a., ACS reagent, K ≤0.02%, ≥98.0% (T), pellets
Sigma-Aldrich
氢氧化钠 溶液, purum, ≥32%
Sigma-Aldrich
氢氧化钠, beads, 16-60 mesh, reagent grade, 97%