Sigma-Aldrich
甘油, for molecular biology, ≥99.0%
Sigma-Aldrich
HEPES, ≥99.5% (titration)
Sigma-Aldrich
氯化钠, BioXtra, ≥99.5% (AT)
Sigma-Aldrich
甘油, ACS reagent, ≥99.5%
Sigma-Aldrich
HEPES, BioPerformance Certified, ≥99.5% (titration), suitable for cell culture
Sigma-Aldrich
氯化钠, for molecular biology, DNase, RNase, and protease, none detected, ≥99% (titration)
Sigma-Aldrich
甘油, ReagentPlus®, ≥99.0% (GC)
Sigma-Aldrich
氯化镁 溶液, for molecular biology, 1.00 M±0.01 M
Sigma-Aldrich
DL-二硫代苏糖醇 溶液, BioUltra, for molecular biology, ~1 M in H2O
Sigma-Aldrich
氯化镁, anhydrous, ≥98%
Sigma-Aldrich
氯化钠 溶液, 5 M in H2O, BioReagent, for molecular biology, suitable for cell culture
Sigma-Aldrich
氯化钠 溶液, 0.9% in water, BioXtra, suitable for cell culture
Supelco
DL-二硫代苏糖醇 溶液, 1 M in H2O
Supelco
甘油, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
氯化钠, meets analytical specification of Ph. Eur., BP, USP, 99.0-100.5%
Sigma-Aldrich
氯化钠, BioReagent, suitable for cell culture, suitable for insect cell culture, suitable for plant cell culture, ≥99%
Sigma-Aldrich
甘油, BioXtra, ≥99% (GC)
Sigma-Aldrich
HEPES缓冲溶液, 1 M in H2O
Sigma-Aldrich
氯化镁 溶液, BioUltra, for molecular biology, ~1 M in H2O
Sigma-Aldrich
甘油, BioReagent, suitable for cell culture, suitable for insect cell culture, suitable for electrophoresis, ≥99% (GC)
Sigma-Aldrich
甘油 溶液, 83.5-89.5% (T)
Supelco
氯化钠, reference material for titrimetry, certified by BAM, ≥99.5%
Supelco
氯化钠, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
HEPES, BioUltra, for molecular biology, ≥99.5% (T)
Sigma-Aldrich
甘油, meets USP testing specifications
Sigma-Aldrich
氯化钠 溶液, BioUltra, for molecular biology, ~5 M in H2O
USP
甘油, United States Pharmacopeia (USP) Reference Standard