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杀螟硫磷标准溶液,122-14-5,analytical standard,100ug/mL in methanol
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汞标准溶液,7439-97-6,100ug/ml in 5% HNO3
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亚硝酸盐标准溶液(以氮计),100mg/L in water
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氟氯氰菊酯标准溶液,68359-37-5,analytical standard,100ug/ml in hexane
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C灭蝇胺标准溶液,66215-27-8,analytical standard,100ug/ml in H2O
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亚硝酸钴钠,13600-98-1,AR
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水中硝酸盐氮成分分析标准物质,100μg/ml ±2% (20℃)
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水中硝酸盐氮成分分析标准物质,1000μg/ml ±1% (20℃)
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亚硝酸盐标准溶液(以氮计)
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(Al,As,B,Ba,Be,Bi,Cd,Co,Cr,Cu,Fe,Ga,Li,Mg,Mn,Ni,Pb,Sb,Sn,Sr,Ti,Tl,V,Zn )多元素混合标准溶液
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