Sigma-Aldrich
乙腈, suitable for HPLC, gradient grade, ≥99.9%
Sigma-Aldrich
甲醇, suitable for HPLC, ≥99.9%
Sigma-Aldrich
乙腈, anhydrous, 99.8%
Sigma-Aldrich
甲醇, ACS reagent, ≥99.8%
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
Sigma-Aldrich
甲醇, anhydrous, 99.8%
Sigma-Aldrich
二氯甲烷, contains 40-150 ppm amylene as stabilizer, ACS reagent, ≥99.5%
Supelco
乙酸铵, LiChropur™, eluent additive for LC-MS
Sigma-Aldrich
甲酸, reagent grade, ≥95%
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
甲醇, HPLC Plus, ≥99.9%
Sigma-Aldrich
甲醇, suitable for HPLC, gradient grade, ≥99.9%
Sigma-Aldrich
甲酸, ACS reagent, ≥96%
Sigma-Aldrich
乙腈, ACS reagent, ≥99.5%
Sigma-Aldrich
甲醇, suitable for HPLC, gradient grade, suitable as ACS-grade LC reagent, ≥99.9%
Sigma-Aldrich
乙腈, for HPLC, for UV, ≥99.9% (GC)
Sigma-Aldrich
乙腈, suitable for HPLC, gradient grade, ≥99.9%
Sigma-Aldrich
乙酸铵, reagent grade, ≥98%
Sigma-Aldrich
甲醇, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.8% (GC)
Sigma-Aldrich
乙酸铵, ACS reagent, ≥97%
Sigma-Aldrich
邻苯二甲酸二丁酯(驱蚊叮), 99%
Sigma-Aldrich
乙酸铵, for molecular biology, ≥98%
Sigma-Aldrich
磷酸钠 二元 十二水合物, meets analytical specification of Ph. Eur., BP, E339, 98.5-102.5% (T)
Sigma-Aldrich
乙酸铵, ≥99.99% trace metals basis
Supelco
甲醇, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
二氯甲烷, puriss. p.a., ACS reagent, reag. ISO, ≥99.9% (GC)
USP
木精, United States Pharmacopeia (USP) Reference Standard
Supelco
甲醇, analytical standard
Sigma-Aldrich
甲醇, Laboratory Reagent, ≥99.6%