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First Standard® 氨氯吡啶酸
Certified Wastewater - Tracemetals
Propachlor ESA sodium salt Solution 100ug/ml in Methanol
0.1% Ni(NO3)2 in 1% HNO3(有证书)
Multicomponent Alcohol Mix 500 标准品
Arochlor 1232
First Standard® 甲醇中盐酸莱克多巴胺-D3溶液,100μg/mL
去环氧-脱氧雪腐镰刀菌烯醇(DOM-1) 标准品
PAH-Mix 197标准溶液
2-Amino-4-chloro-3-nitropyridine