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BONDED PHASE OF SILICA FOR SOLID PHASE EXTRACTION BONDED PHASE OF SILICA FOR SOLID PHASE EXTRACTION
BONDED PHASE OF SILICA FOR SOLID PHASE EXTRACTION BONDED PHASE OF SILICA FOR SOLID PHASE EXTRACTION
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机译:固相萃取用硅胶键合相固相萃取用硅胶键合相
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摘要
For solid-phase clean-up of urine samples, e.g. in the analysis of cannabinoids, a novel solid-phase bonded silica product has the formula …CHEM… is the backbone of a silica gel or controlled pore glass;… X is -O-, -S-, -O-CH2-CHOH-CH2-O- or -O-CH2-CHOH-CH2-S-;… n is 2, 3, 4 or 5;… p is 0 or 1;… each R and R1 (if present) are independently selected from H, C1-3 alkyl and -(CH2)m-COOR3 wherein R3 is C1-4 alkyl and m is 1, 2, 3 or 4; and… R2 is C1-4 alkyl.
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