| 3.5—二甲苯酚分光光度法测定果胶 |
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| 引用本文： | 徐安康,陈明义,杨克辉,徐民良.3.5—二甲苯酚分光光度法测定果胶[J].天津科技大学学报,1993(1). |
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| 作者姓名： | 徐安康 陈明义 杨克辉 徐民良 |
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| 作者单位： | 天津轻工业学院
(徐安康，陈明义，杨克辉)，天津轻工业学院(徐民良) |
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| 摘 要： | 采用3.5—Q二甲苯酚为显色剂分光光度法测定果胶含量。并对其吸收曲线、蔗糖、果糖的干垅、酸度、显色时间、氯化钠用量等作了详细的试验。并与咔唑分光光度法进行了比较。同时对南瓜等样品中果胶含量进行了测定
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| 关 键 词： | 果胶 3.5—二甲苯酚 |
SPECTROPHTOMETRIC DETERMINATION OF PECTIC SUBSTANCES WITH 3.5-DIMETHYLPENOL |
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| Xu Ankang Chen Mingyi Yang Kehui Xu Minliang.SPECTROPHTOMETRIC DETERMINATION OF PECTIC SUBSTANCES WITH 3.5-DIMETHYLPENOL[J].Journal of Tianjin University of Science & Technology,1993(1). |
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| Authors: | Xu Ankang Chen Mingyi Yang Kehui Xu Minliang |
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| Institution: | Xu Ankang Chen Mingyi Yang Kehui Xu Minliang |
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| Abstract: | A colorimetric reagent,3.5-dimethylqhenol. is used for spec-rophotometric determination of paction of pectic substances. The absorp-on spectra, reaction conditions, and interference from sucrose and fruct-se were investigatigated and optimized experimentally. The comparison of 3. 5-dimethylphenol with carbazole method and sample analysis of pumpkin fruits were satisfyingl) demonstrated. |
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| Keywords: | Pectic Subctance 3 5-dimethylphenol |
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