A cellphone-based colorimetric multi-channel sensor for water environmental monitoring

Xing, Yunpeng; Xue, Boyuan; Lin, Yongshu; Wu, Xueqi; Fang, Fang; Qi, Peishi; Guo, Jinsong; Zhou, Xiaohong

doi:10.1007/s11783-022-1590-z

Cited by 11 publications

(3 citation statements)

References 28 publications

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“… ( de Souza et al, 2023 ) 0.1–10 0.028 Ascorbic acid method Plate LED light box R 2 =0.978; RSD = 1.34 % for 6 replicates of 5.0 mg P/L. ( Xing et al, 2022 ) 0.25–10.0 NA Commercial liquid test kit Glass bottle None Relative error is about 30 % and 70 % for corrected and uncorrected measurements, respectively. ( Costa et al, 2020 ) 0.155–1.24 0.031 Fluorometric heptamolybdate method Cuvette LED tool kit R 2 =0.989; mean RSD=1.2 %.…”

Section: Introductionmentioning

confidence: 99%

Efficient smartphone-based measurement of phosphorus in water

Ai,

Zhang,

Zhang

2024

Water Research X

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Section: Introductionmentioning

confidence: 99%

Efficient smartphone-based measurement of phosphorus in water

Ai,

Zhang,

Zhang

2024

Water Research X

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“…The absorbance of the mixed solution was 0.029 and 0.032 at 410 and 431 nm, respectively. Furthermore, Xing et al 29 have created a multi-channel colorimetric sensor tailored for cellphones capable of concurrently quantifying numerous environmental pollutants with remarkable precision and steadiness. They implemented a diffraction grating to divide six white beams that traverse multiple colored samples.…”

Section: Introductionmentioning

confidence: 99%

Contactless Optical Liquid Identifier

Obeidat,

Abu Mousa,

Mushaljy

2023

ACS Omega

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This paper presents the development of a portable device that can be used for liquid identification using the concept of Beer–Lambert law. The final device can recognize up to 30 different materials in their liquid state and provides some other useful features that can enhance its operation. The user can set a group of 30 liquids according to specific needs and applications. The device can provide the user with some specific settings to start the measurements. The volume of a fluid is identified by a 4 mL sample inserted in the cuvette, then the user can start measuring the concentration of some common solvents like methanol, ethanol, etc. by passing a light of different wavelengths through the sample. The amount of the transferred light is measured using photodetectors and the readings depend on the amount of absorption. The amount of absorption depends on the sample types, colors, contents, and concentrations, so it is used as the main indicator to identify a specific sample.

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“…So far, plenty of methods have been developed for uoride sensing, including the Willard-Winter method, uorine reagent colorimetry, ion chromatography, 19 F-NMR, ion-selective electrodes, [9][10][11] and smart phone-based colorimetric sensors. 12,13 Out of the various methods available, colorimetric techniques attract more attention due to their effective and convenient nakedeye detection approach, with high selectivity and sensitivity.…”

mentioning

confidence: 99%