西南师范大学学报（自然科学版）
西南師範大學學報（自然科學版）
서남사범대학학보（자연과학판）
JOURNAL OF SOUTHWEST CHINA NORMAL UNIVERSITY
2015年
5期
185-188
,共4页
手持技术%葡萄糖酸钙%酸性铬兰K%教学建议
手持技術%葡萄糖痠鈣%痠性鉻蘭K%教學建議
수지기술%포도당산개%산성락란K%교학건의
hand-held technology%calcium gluconate tablet%acid chrome blue K%teaching proposal
阐述了在中学化学实验教学中应用手持技术测定微量钙的意义，研究了以酸性铬蓝K为显色剂，用手持技术测定葡萄糖酸钙片中钙含量的方法，测定Ca2＋质量浓度的线性范围是0～2.0 mg／L ，加标回收率达99.8％以上；与分光光度法比较，该法灵敏度高，准确性好，操作简单、快速、仪器价廉，适合在中学化学教学中应用；此外还针对教学提出了建议．
闡述瞭在中學化學實驗教學中應用手持技術測定微量鈣的意義，研究瞭以痠性鉻藍K為顯色劑，用手持技術測定葡萄糖痠鈣片中鈣含量的方法，測定Ca2＋質量濃度的線性範圍是0～2.0 mg／L ，加標迴收率達99.8％以上；與分光光度法比較，該法靈敏度高，準確性好，操作簡單、快速、儀器價廉，適閤在中學化學教學中應用；此外還針對教學提齣瞭建議．
천술료재중학화학실험교학중응용수지기술측정미량개적의의，연구료이산성락람K위현색제，용수지기술측정포도당산개편중개함량적방법，측정Ca2＋질량농도적선성범위시0～2.0 mg／L ，가표회수솔체99.8％이상；여분광광도법비교，해법령민도고，준학성호，조작간단、쾌속、의기개렴，괄합재중학화학교학중응용；차외환침대교학제출료건의．
In this work ,the significance of the determination of Ca2+ with hand-held technology in chemical experiment of high school has been stated .Based on acid chrome blue K as the chromogenic reagent ,the method for determination on the amount of calcium in calcium gluconate tablets has been presented .The results show that the linear range is between 0 mg/mL to 2 .0 mg/mL ,and the recovery is greater than 99 . 8% .Compared to the spectrophotometry ,the method mentioned above is applicable to the high school chemical experiment teaching for its high sensitivity ,good accuracy ,simple operation ,rapid process and low price .Also several proposals about chemistry teaching in high school are put forward in the paper .
