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硝酸盐氮标准溶液,1000ug/ml in Water (20℃)
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2,3-二甲酚标准溶液,526-75-0,analytical standard,1000ug/ml in methanol
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1,2,4-三氯苯标准溶液,120-82-1,analytical standard,1000ug/ml in methanol
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邻苯二甲酸二甲酯标准溶液,131-11-3,analytical standard,1000ug/ml in methanol
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Cole-Parmer APC1612 Clear VOA Vials, 40 mL, Closed-Top, 25 mL Methanol; 20/Cs
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First Standard® 乙腈中青藤碱溶液,1000ug/ml
Sinomenine solution in Acetonitrile, 1000ug/mlFirst Standard®天津
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First Standard® 乙腈中结晶紫溶液,1000ug/ml
Crystal Violet Solution in Acetonitrile, 1000ug/mlFirst Standard®天津
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水中硝酸根成分分析标准物质,1000ug/ml ±1% (20℃)
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邻苯二甲酸丁苄酯标准溶液,85-68-7,analytical standard,1000ug/ml in methanol
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液液萃取柱 NT20 pre-packed columns for extraction of lipophilic compounds from aqueous solutions (20 ml sample)
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