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热: 邻苯二甲酸丁酯苯甲酯(Butylbenzyl phthalate) 浓度:1000μg/mL 基体:甲醇 容量:1mL
热: 邻苯二甲酸丁酯苯甲酯(Butylbenzyl phthalate) 浓度:1000μg/mL 基体:甲醇
容量:1mL
Perfluoro-n-[1,2,3,4,5-13C5]nonanoic acid
2,2'3,5',6-五氯联苯
First Standard® 乙腈中4,4'-二氨基二苯硫醚溶液,1000μg/mL
品管查核 标准品 for checking the quality of photometric methods for ammonium, chloride, CSB, nitrate, phosphorus and sulfate Spectroquant®
ASTM-煤油中空白标油
苯并(a)芘标准溶液
PCL 对氯甲苯 分析标准品
First Standard® 蒿甲醚杂质 II
Perfluoro-4-methyloctanoic acid
Native PFAS Precision and Recovery Standard Solution