Detail publikace

A Miniaturized Colorimeter with a Novel Design and High Precision for Photometric Detection

Yan, JC. Chen, Y. Pang, Y. Slavik, J. Zhao, YF. Wu, XM. Yang, Y. Yang, SF. Ren, TL.

Originální název

A Miniaturized Colorimeter with a Novel Design and High Precision for Photometric Detection

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Water quality detection plays an increasingly important role in environmental protection. In this work, a novel colorimeter based on the Beer-Lambert law was designed for chemical element detection in water with high precision and miniaturized structure. As an example, the colorimeter can detect phosphorus, which was accomplished in this article to evaluate the performance. Simultaneously, a modified algorithm was applied to extend the linear measurable range. The colorimeter encompassed a near infrared laser source, a microflow cell based on microfluidic technology and a light-sensitive detector, then Micro-Electro-Mechanical System (MEMS) processing technology was used to form a stable integrated structure. Experiments were performed based on the ammonium molybdate spectrophotometric method, including the preparation of phosphorus standard solution, reducing agent, chromogenic agent and color reaction. The device can obtain a wide linear response range (0.05 mg/L up to 7.60 mg/L), a wide reliable measuring range up to 10.16 mg/L after using a novel algorithm, and a low limit of detection (0.02 mg/L). The size of flow cell in this design is 18 mm x 2.0 mm x 800 mu m, obtaining a low reagent consumption of 0.004 mg ascorbic acid and 0.011 mg ammonium molybdate per determination. Achieving these advantages of miniaturized volume, high precision and low cost, the design can also be used in automated in situ detection.

Klíčová slova

colorimeter; phosphorus detection; Beer-Lambert law; microflow cell; photodetection sensor

Autoři

Yan, JC.; Chen, Y. ; Pang, Y. ; Slavik, J.; Zhao, YF.; Wu, XM.; Yang, Y.; Yang, SF. ; Ren, TL.

Vydáno

8. 3. 2018

ISSN

1424-8220

Periodikum

SENSORS

Ročník

18

Číslo

3

Stát

Švýcarská konfederace

Strany od

1

Strany do

14

Strany počet

14

URL

http://www.mdpi.com/1424-8220/18/3/818

BibTex

@article{BUT151100,
  author="Yan, JC. and Chen, Y. and Pang, Y. and Slavik, J. and Zhao, YF. and Wu, XM. and Yang, Y. and Yang, SF. and Ren, TL.",
  title="A Miniaturized Colorimeter with a Novel Design and High Precision for Photometric Detection",
  journal="SENSORS",
  year="2018",
  volume="18",
  number="3",
  pages="1--14",
  doi="10.3390/s18030818",
  issn="1424-8220",
  url="http://www.mdpi.com/1424-8220/18/3/818"
}