检验医学 ›› 2015, Vol. 30 ›› Issue (8): 782-786.DOI: 10.3969/j.issn.1673-8640.2015.08.002

• 临床应用研究·论著 • 上一篇    下一篇

响应曲面法验证淀粉酶检测程序最适pH值、Cl-和EPS浓度

孟舒婷, 王惠民, 季伙燕, 王建新, 许丽丽, 袁若愚, 顾文超   

  1. 南通大学附属医院,江苏 南通 226001
  • 收稿日期:2014-12-08 出版日期:2015-08-30 发布日期:2015-08-28
  • 作者简介:null

    作者简介:孟舒婷,女,1988年生,硕士,主要从事酶学及生物化学检验研究。

    通讯作者:王惠民,联系电话:0513-85052101。

Response surface method to verify amylase determination procedure's optimum pH, chloride ion and EPS concentrations

MENG Shuting, WANG Huimin, JI Huoyan, WANG Jianxin, XU Lili, YUAN Ruoyu, GU Wenchao.   

  1. The Affiliated Hospital of Nantong University, Jiangsu Nantong 226001, China
  • Received:2014-12-08 Online:2015-08-30 Published:2015-08-28

摘要:

目的 证明响应曲面法(RSM)是确认淀粉酶(AMY)参考测量程序最佳测量条件的方法。方法 采用单因素方差分析研究pH值、氯离子(Cl-)、亚乙基-P-硝基苯-D-麦芽七糖苷(EPS)浓度对AMY活性的影响是否具有统计学意义。采用Box-Behnken试验设计,在实验室条件下研究pH值(6.9~7.1)、Cl-(50~90 mmol/L)和EPS浓度(4.5~5.5 mmol/L)对AMY活性的联合效应,建立pH值、Cl-和EPS对AMY活性影响的定量关系模型,优化得出pH值、Cl-和EPS的最佳组合。结果 pH值、Cl-和EPS对AMY活性影响有统计学意义(P<0.05);pH值、Cl-和EPS对AMY活性影响的一次、二次效应均有统计学意义(P<0.01),Cl-和EPS交互作用有统计学意义(P<0.05)。AMY最优条件:pH值7.02、Cl- 72.79 mmol/L、EPS 5.07 mmol/L。结论 所得pH值、Cl-和EPS的最佳测量条件与国际临床化学和检验医学联合会(IFCC)推荐条件无差异,RSM可以作为确认参考测量程序最佳测量条件的方法。

关键词: 响应曲面法, 淀粉酶, 单因素方差分析, pH值, 氯离子, 亚乙基-P-硝基苯-D-麦芽七糖苷

Abstract:

Objective To confirm that response surface method (RSM) is a method for amylase (AMY) reference determination procedure with optimum conditions. Methods The single factor analysis of variance was used to study pH, chloride ion (Cl-) and ethylidene-4-nitrophenyl-alpha-D-maltoheptaoside(EPS) concentrations in order to know whether they had statistical significance for AMY activity. Box-Behnken design was used to study the combined influence of pH (6.9-7.1), Cl- (50-90 mmol/L) and EPS (4.5-5.5 mmol/L) concentrations on AMY activity. The quantitative relation model on pH, Cl- and EPS concentrations for AMY activity was established in order to obtain their optimum combination. Results There was statistical significance on the influence of the 3 factors on AMY activity (P<0.05). The one-shot and second-order effects of pH,Cl- and EPS had statistical significance on AMY activity (P<0.01). Cl- and EPS interacted significantly (P<0.05).The optimum conditions for AMY were pH 7.02,Cl- 72.79 mmol/L and EPS 5.07 mmol/L. Conclusions The optimum conditions of pH, Cl- and EPS have no difference with those recommended from the International Federation of Clinical Chemistry and Laboratory Medicine (IFCC). RSM is a method with optimum conditions to confirm the reference determination procedure.

Key words: Response surface method, Amylase, Single factor analysis of variance, pH, Chloride ion, Ethylidene-4-nitrophenyl-alpha-D-maltoheptaoside

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