应用化学 ›› 2024, Vol. 41 ›› Issue (10): 1481-1490.DOI: 10.19894/j.issn.1000-0518.240131

• 研究论文 • 上一篇    下一篇

不同智能手机图像比色法的台间差异

杨赛男1, 李平1, 吕圆1, 罗海勇1, 张玲玲2, 戴斌1(), 汪啸2()   

  1. 1.湖南环境生物职业技术学院医药技术系,衡阳 421000
    2.中国科学院长春应用化学研究所,稀土资源利用国家重点实验室,长春 130022
  • 收稿日期:2024-04-18 接受日期:2024-08-20 出版日期:2024-10-01 发布日期:2024-10-29
  • 通讯作者: 戴斌,汪啸
  • 基金资助:
    湖南省自然科学基金项目(2023JJ60207);湖南省教育厅科学研究项目(23C0625)

The Inter-station Difference of Image Colorimetry for Smart Phones

Sai-Nan YANG1, Ping LI1, Yuan LYU1, Hai-Yong LUO1, Ling-Ling ZHANG2, Bin DAI1(), Xiao WANG2()   

  1. 1.College of Medicine and Technology,Hunan Environment Biological Polytechnic,Hengyang 421000,China
    2.State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,China
  • Received:2024-04-18 Accepted:2024-08-20 Published:2024-10-01 Online:2024-10-29
  • Contact: Bin DAI,Xiao WANG
  • About author:wangxiao@ciac.ac.cn
    1198993413@qq.com
  • Supported by:
    the Natural Science Foundation of Hunan(2023JJ60207);Hunan Provincial Department of Education Scientific Research Project(23C0625)

摘要:

利用7款手机对胆红素浓度进行检测,其特征吸光度与胆红素浓度的线性回归决定系数(R2 )均大于0.95,但不同手机之间差异大,其特征吸光度的最大平均偏差高达183%。 本文利用梯度色卡进行实时校正,并考察不同色卡的校准效果,结果显示与反应体系颜色接近的色卡校准效果最佳; 利用与胆红素反应体系颜色相近的紫色梯度色卡校正并优化校正方程,7款手机的特征吸光度最大平均偏差降至17.5%。 引入校正色卡后7款手机检测27.2、55.1和169.3 μmol/L样本时,最大相对标准偏差(RSD)分别为6.0%、3.9%和3.5%。 利用34台不同品牌手机进行了色卡校正的验证,结果显示,该校准方法成功实现了不同手机测试结果的实时校准。

关键词: 图像比色法, 台间差异, 校准色块, 胆红素, 检测

Abstract:

In this study, seven mobile phones were employed to measure bilirubin concentration. The coefficient of determination (R2) between characteristic absorbance and bilirubin concentration exceeded 0.95. Nevertheless, significant variability was observed across the different mobile phones, with the maximum average deviation in characteristic absorbance reaching up to 183%. We introduced gradient color cards to perform real-time correction, examined the correction effects of different color cards, and optimized the correction equation. Utilizing a purple gradient color card tailored to the bilirubin reaction system and refining the correction equation reduced the maximum average deviation in characteristic absorbance among the seven mobile phones to 17.5%. Following the implementation of the calibration color card, the maximum relative standard deviation (RSD) for the 27.2 μmol/L sample detected by the seven mobile phones was 6.0%. Similarly, the maximum RSDs for the 55.1 and 169.3 μmol/L samples were 3.9% and 3.5%, respectively. We further validated the color chart correction across 34 mobile phones from diverse brands. By introducing gradient color cards of similar colors into the detection window, real-time calibration of detection results across various mobile phones can be realized.

Key words: Image colorimetry, Inter-station variation, Calibration patch, Bilirubin, Detection and analysis

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