聚对苯二甲酸乙二酯(PET)薄膜经固相缩聚反应后，用凝胶色谱法测定产物的分子量、分子量分布和环状齐聚物含量。
Polyethylene terephthalate (PET) films were polymerized in solid phase, the molecular weight, molecular weight distribution (MWD) and cyclic oligomer content of the products were determined by GPC.
目的建立保健食品中吡啶甲酸铬含量的测定方法，验证吡啶甲酸铬的稳定性。
Objective To develop a method for determining the content of chromium picolinate in sanitarian food and to validate its stability.
建立以紫外分光光度法测定果蔬盐中苯甲酸钠含量的方法。该方法操作简便、快捷、成本低、结果准确。
To establish an ultraviolet spectrophotometry for the determination of the sodium benzoate in fruit and vegetable salt. The method is simple, fast, low-cost and accurate.
方法：采用紫外分光光度法测定滴丸中维甲酸的含量，转篮法考察其体外溶出度。
Methods: Tretinoin in the dropping pills was determined spectrophotometrically and rotating basket method was adopted to determine its dissolution rate.
采用内标法定量，能准确测定混和氯甲苯氧化过程中的氯代苯甲酸异构体的含量，回收率达92％以上，变异系数小于3.6％。
The contents of chlorobenzoic acids isomers could been accurately quantified through internal standard, and the recovery was more than 92 percent, and RSD less than 3.6 percent.
目的：采用高效液相色谱法同时测定复方苯甲酸散中水杨酸苯甲酸的含量。
Objective: To Determine the content of salicylic acid and benzoic acid in Compound Ben-zoic acid Powder by HPLC.
目的：测定复方苯甲酸散中各组分的含量，建立一套完整、简便、有效的复方苯甲酸散定量质控方法。
OBJECTIVE: To determine the contents of compound benzoic acid powder and form a complete, simple and effective method of quality control for compound benzoic acid powder.
采用紫外双波长法直接测定凝胶剂中克林霉素 ，维甲酸的含量。
Double waveleng UV spectrophotometry was used to measure the drug content of the gelata.
本文应用吸收度线性组合法，不经分离直接测定复方苯甲酸醇溶液的含量。
We adopted the linear combination method of absorbances to assay the contents of compound alcoholic solution of benzoic acid directly without isolation of its components.
我们用此技术在稀释的酱油样品中富集测定了防腐剂山梨酸和苯甲酸的含量，并已取得重要进展。
More recently, benzoic acid and sorbic acid preservatives in diluted soy sauce samples were analyzed by the this method, and we have made some important progress.
目的：测定碘苯甲酸涂剂中苯甲酸和水杨酸的含量。
Objective:To determine the content of benzoic acid and salicylic acid in the iodobenzoic acid paint.
应用离子排斥色谱法测定了饮料中的苯甲酸含量。
The content of benzoic acid in beverages was determined by ion-exclusion chromatography.
目的：建立高效液相色谱法测定苯甲酸苄酯乳膏中苯甲酸苄酯的含量。
OBJECTIVE To Determine the content of benzyl benzoate in benzyl benzoate cream by HPLC.
目的：建立高效液相色谱法测定苯甲酸苄酯乳膏中苯甲酸苄酯的含量。
OBJECTIVE To Determine the content of benzyl benzoate in benzyl benzoate cream by HPLC.
应用推荐