-
正十二烷 reference substance for gas chromatography
-
正十一烷 reference substance for gas chromatography
-
D-樟脑 reference substance for gas chromatography
-
油酸甲酯 reference substance for gas chromatography
-
癸酸甲酯 reference substance for gas chromatography
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硼酸溶液,10043-35-3,3% (w/w)
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品管查核 标准品 for checking the quality of photometric methods for ammonium, CSB and nitrogen Spectroquant®
-
品管查核 标准品 for checking the quality of photometric methods for ammonium, CSB and nitrogen Spectroquant®
-
品管查核 标准品 for checking the quality of photometric methods for CSB, nitrate and phosphorus Spectroquant®
-
醋酸溶液,64-19-7,3% (w/w)
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