摘要
2022年江苏省职业院校技能大赛“化学实验技术”赛项采用磺基水杨酸或1,10-菲啰啉分光光度法测定样品中铁含量。在实验过程中,玻璃器皿清洁、标准储备液稀释、待测溶液配制、溶液显色时间等均会对实验结果产生重要影响。针对以上因素提出改进措施,从而达到提高测定结果准确性的目的。
In the 2022 Jiangsu vocational skills competition “Chemical Experiment Technology” item, sulfosalicylic acid spectrophotometry or 1,10-phenanthroline spectrophotometry were used to determine the content of iron in samples. During the experiment, the cleanliness of glassware, the design of standard curve, the preparation of the solution to be tested, and the time of solution color development all affect the experimental results. In view of the above factors, suggestions for improvement are put forward to improve the accuracy of the determination results.
作者
易承学
徐茜
YI Chengxue;XU Xi(School of Medical Technology,Zhenjiang College,Zhenjiang 212028,China)
出处
《镇江高专学报》
2023年第1期113-117,共5页
Journal of Zhenjiang College
基金
镇江高等专科学校教学改革研究项目(2022YB22)
新医科高职教育研究协同创新基地(苏社联发[2020]96号)。
关键词
化学实验技术
技能大赛
铁含量测定
因素分析
Chemical Experiment Technology
skills competition
iron content determination
factor analysis
