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艾杰尔CleanertQuechers100mg PSA;100mg C18;0.9g MgSO4( Anhydrous), 50/Pk
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对硝基苯胺标准溶液,100-01-6,analytical standard,1000ug/ml in methanol
-
4-Chlorobenzyl cyanide-d4 | MedChemExpress (MCE)
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-50mg 水中总磷 / 介质:H2O(水)
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盐酸胍,50-01-1,AR,99.0%
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盐酸胍,50-01-1,CP,98.0%
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硝酸镁- 背景调整剂 for graphite furnace AAS c(Mg) = 10.0 ± 0.2 g/l (Mg(NO₃)₂ * 6 H₂O in HNO₃ ca. 17%)
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甲醛标准溶液,50-00-0,analytical standard,100mg/L,in 5% ethanol
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水质高锰酸盐指数标样,2.61-5.91(mg/L) in H2O(稀释后)
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水质总有机碳标样,10.1-120mg/L in H2O
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