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(S)-(-)-2-氨基-2'-羟基-1,1'-联萘
顺-4-羟基-D-脯氨酸
[S(R)]-N-[(1S)-1-[2-(9-蒽基)苯基]-2-(二苯基膦)乙基]-N-甲基-2-叔丁基亚磺酰胺
DIMROTH CONDENSER FOR SOXHLET 2000 ML, L. 300 MM, CONE ST 45/40
p-(Heptyloxy)phenol
SPECIMEN BOTTLE WITH SCREW THREAD, CAP PE, FOR TESTS AND PILLS ETC., HEIGHT 90 MM, DIA. 30 MM, CA
1,1-二氯丙烷,100ng/ul溶于甲醇 标准品
BETASIL C18 10UM 150X50MM PREP COLUMN
固相萃取
7种阴离子混标,Cl/Br/SO4/NO3(as N)/NO2(as N)/PO4(as P)/F,溶于 H2O