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Low-temperature and rapid determination of water content in solid samples using a MAPbBr3/SiO2 paper-based sensor.

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Title: Low-temperature and rapid determination of water content in solid samples using a MAPbBr3/SiO2 paper-based sensor.
Authors: Bin, Wan-Qing1 (AUTHOR), Liu, Cheng-Lin1 (AUTHOR), Li, Zhi-Jie1 (AUTHOR), Yang, Le1 (AUTHOR), Fu, Chun-Yan1 (AUTHOR), Liu, Sha1 (AUTHOR) liusha202112@163.com, Ju, Yanmin2 (AUTHOR) juyanmin@cpu.edu.cn, Liu, Xiao-Fei1 (AUTHOR) liuxiaofeisy@163.com
Source: Microchimica Acta. Mar2026, Vol. 193 Issue 3, p1-9. 9p.
Subjects: Moisture measurement, Solid-phase analysis, Water analysis, Detectors, Temperature detectors, Perovskite crystallography
Abstract: Lowering the heating temperature can reduce matrix interference in the heating evaporation method, but it also places higher demands on the water sensitivity of the sensing material. Owing to the presence of the methylammonium component, MAPbBr3 organic-inorganic hybrid perovskite quantum dots (PQDs) exhibit higher water sensitivity compared to pure inorganic PQDs. Therefore, this study reports the fabrication of a MAPbBr3/SiO2 paper-based water content sensor. This sensor enables rapid (10 min) and low-temperature (50℃) detection of water content in solid samples, reducing the overall analysis by 61.5% compared with sensors based on pure inorganic PQDs. The sensor exhibits a linear detection range of 0.5%–21% for Codonopsis pilosula samples, with a limit of detection of 0.34%. The results obtained using this method show good agreement with the oven-drying method recommended by the Chinese Pharmacopoeia, with a relative error of no more than 2.38%, as well as acceptable reproducibility (RSD ≤ 8.85%) and recoveries ranging from 95.7% to 103.8%. This study demonstrates the potential of MAPbBr3 organic–inorganic hybrid PQDs for rapid, low-temperature, and sensitive detection of water content in solid samples. [ABSTRACT FROM AUTHOR]
Copyright of Microchimica Acta is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 192429840
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Low-temperature and rapid determination of water content in solid samples using a MAPbBr<subscript>3</subscript>/SiO<subscript>2</subscript> paper-based sensor.
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  Data: <searchLink fieldCode="AR" term="%22Bin%2C+Wan-Qing%22">Bin, Wan-Qing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Cheng-Lin%22">Liu, Cheng-Lin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Zhi-Jie%22">Li, Zhi-Jie</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Le%22">Yang, Le</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fu%2C+Chun-Yan%22">Fu, Chun-Yan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Sha%22">Liu, Sha</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> liusha202112@163.com</i><br /><searchLink fieldCode="AR" term="%22Ju%2C+Yanmin%22">Ju, Yanmin</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> juyanmin@cpu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Liu%2C+Xiao-Fei%22">Liu, Xiao-Fei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> liuxiaofeisy@163.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Microchimica+Acta%22">Microchimica Acta</searchLink>. Mar2026, Vol. 193 Issue 3, p1-9. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Moisture+measurement%22">Moisture measurement</searchLink><br /><searchLink fieldCode="DE" term="%22Solid-phase+analysis%22">Solid-phase analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Water+analysis%22">Water analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Detectors%22">Detectors</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+detectors%22">Temperature detectors</searchLink><br /><searchLink fieldCode="DE" term="%22Perovskite+crystallography%22">Perovskite crystallography</searchLink>
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  Label: Abstract
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  Data: Lowering the heating temperature can reduce matrix interference in the heating evaporation method, but it also places higher demands on the water sensitivity of the sensing material. Owing to the presence of the methylammonium component, MAPbBr3 organic-inorganic hybrid perovskite quantum dots (PQDs) exhibit higher water sensitivity compared to pure inorganic PQDs. Therefore, this study reports the fabrication of a MAPbBr3/SiO2 paper-based water content sensor. This sensor enables rapid (10 min) and low-temperature (50℃) detection of water content in solid samples, reducing the overall analysis by 61.5% compared with sensors based on pure inorganic PQDs. The sensor exhibits a linear detection range of 0.5%–21% for Codonopsis pilosula samples, with a limit of detection of 0.34%. The results obtained using this method show good agreement with the oven-drying method recommended by the Chinese Pharmacopoeia, with a relative error of no more than 2.38%, as well as acceptable reproducibility (RSD ≤ 8.85%) and recoveries ranging from 95.7% to 103.8%. This study demonstrates the potential of MAPbBr3 organic–inorganic hybrid PQDs for rapid, low-temperature, and sensitive detection of water content in solid samples. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Microchimica Acta is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s00604-026-07943-6
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        Text: English
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      – SubjectFull: Moisture measurement
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      – SubjectFull: Solid-phase analysis
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      – SubjectFull: Water analysis
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      – SubjectFull: Detectors
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      – SubjectFull: Temperature detectors
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      – SubjectFull: Perovskite crystallography
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      – TitleFull: Low-temperature and rapid determination of water content in solid samples using a MAPbBr3/SiO2 paper-based sensor.
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            NameFull: Bin, Wan-Qing
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              Text: Mar2026
              Type: published
              Y: 2026
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