Determination of phosphorus in water and chemical fertilizer samples using a simple drawing microfluidic paper-based analytical device
A simple one-step drawing for the cost-effective fabrication of microfluidic paper-based analytical devices (µPADs) for the determination of phosphate content in water and fertilizer samples is presented in this paper. The hydrophobic barrier of µPAD was patterned using a 2-mm tip marker pen using a...
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th-mahidol.841572023-06-18T23:57:38Z Determination of phosphorus in water and chemical fertilizer samples using a simple drawing microfluidic paper-based analytical device Phansi P. Mahidol University Chemistry A simple one-step drawing for the cost-effective fabrication of microfluidic paper-based analytical devices (µPADs) for the determination of phosphate content in water and fertilizer samples is presented in this paper. The hydrophobic barrier of µPAD was patterned using a 2-mm tip marker pen using a transparent acrylic sheet template. The molybdenum blue reaction using ascorbic acid as a reducing agent was used. A pre-concentration step of samples is proposed to improve the sensitivity of the measurement. The blue complex produced on the µPADs was recorded using a smartphone camera. The color intensities (red, green, blue and gray) were analyzed using ImageJ program. The proposed µPAD method provides a linear calibration range from 0 to 100 mg L−1 P. The limit of detection (LOD) was found to be 0.7 mg L−1 P with a precision of 3.1%RSD for 50 mg L−1 P (n = 10). The proposed method was successfully applied to the determination of phosphorus contents in water and liquid chemical fertilizer samples. The results obtained from µPAD agreed with a spectrophotometric method using paired t test at a 95% confidence level. Graphical abstract: [Figure not available: see fulltext.]. 2023-06-18T16:57:38Z 2023-06-18T16:57:38Z 2022-10-01 Article Analytical Sciences Vol.38 No.10 (2022) , 1323-1332 10.1007/s44211-022-00162-y 13482246 09106340 35876988 2-s2.0-85134770234 https://repository.li.mahidol.ac.th/handle/123456789/84157 SCOPUS |
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Chemistry Phansi P. Determination of phosphorus in water and chemical fertilizer samples using a simple drawing microfluidic paper-based analytical device |
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A simple one-step drawing for the cost-effective fabrication of microfluidic paper-based analytical devices (µPADs) for the determination of phosphate content in water and fertilizer samples is presented in this paper. The hydrophobic barrier of µPAD was patterned using a 2-mm tip marker pen using a transparent acrylic sheet template. The molybdenum blue reaction using ascorbic acid as a reducing agent was used. A pre-concentration step of samples is proposed to improve the sensitivity of the measurement. The blue complex produced on the µPADs was recorded using a smartphone camera. The color intensities (red, green, blue and gray) were analyzed using ImageJ program. The proposed µPAD method provides a linear calibration range from 0 to 100 mg L−1 P. The limit of detection (LOD) was found to be 0.7 mg L−1 P with a precision of 3.1%RSD for 50 mg L−1 P (n = 10). The proposed method was successfully applied to the determination of phosphorus contents in water and liquid chemical fertilizer samples. The results obtained from µPAD agreed with a spectrophotometric method using paired t test at a 95% confidence level. Graphical abstract: [Figure not available: see fulltext.]. |
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Phansi P. |
title |
Determination of phosphorus in water and chemical fertilizer samples using a simple drawing microfluidic paper-based analytical device |
title_short |
Determination of phosphorus in water and chemical fertilizer samples using a simple drawing microfluidic paper-based analytical device |
title_full |
Determination of phosphorus in water and chemical fertilizer samples using a simple drawing microfluidic paper-based analytical device |
title_fullStr |
Determination of phosphorus in water and chemical fertilizer samples using a simple drawing microfluidic paper-based analytical device |
title_full_unstemmed |
Determination of phosphorus in water and chemical fertilizer samples using a simple drawing microfluidic paper-based analytical device |
title_sort |
determination of phosphorus in water and chemical fertilizer samples using a simple drawing microfluidic paper-based analytical device |
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2023 |
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https://repository.li.mahidol.ac.th/handle/123456789/84157 |
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