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- W2377435030 abstract "Using silica gel G as stationary phase, using chloroform∶acetic ester∶acetone∶formic acid∶methanol= 1∶8∶1∶1∶2(V∶V) as mobile phase, using 15% dimethylaminobenzaldehyde in the solution of ethanol and sul- phuric acid as color developing agent, The allantoin in rice-flour ofRhizoma Dioscoreaewas appraised by TLC·The allantoin was spread and leached and then was analyzed with the ultraviolet spectrophotometer, the wavelength was 225 nm·The result showed that linearity was good when the concentration of allantoin was at 4·0~20 mg/L, the regress equation:Y=0·027 43X-0·003 5(R=0·999 9), recovery rate was 95·76%~ 97·94% when allantoin was at 0·29%~0·30%·The influence of solvents, conditions of sample disposal and the pH of buffer on the ab- sorption spectrum was studied·" @default.
- W2377435030 created "2016-06-24" @default.
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- W2377435030 date "2005-01-01" @default.
- W2377435030 modified "2023-09-24" @default.
- W2377435030 title "STUDY ON THE DETECTION OF ALKALOIDS INRHIZOMA DIOSCOREAE RICE-FLOUR WITH TLC UV AND THE EXTRACTION TECHNOLOGY" @default.
- W2377435030 hasPublicationYear "2005" @default.
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