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甲醇:甲苯(4:1)中7种氯苯混标(HJ621-2011水质氯苯类化合物的测定)
Magnetic stirring-bar, PTFE, polygon, 3 x 10 mm
ST-SOCKETS, FULL LENGTH, ST 24/40 D: 28 MM, LENGTH 135 MM, WALL THICK 2,0 MM
(S)-3-(1-苯乙基)-1-薁甲酸
CW/PEG手动萃取头,60μm,1支/盒
邻甲苯异氰酸酯
1ML合金定量环
气相填料,10% Carbowax® 20M ON 80/100 Chromosorb WAW
LiChroCART 125-2,LiChrospher 60 RP-18 10μm定制柱
FS CAP SPB-5 50M 0.32MM 5.0UM