Field Determination of Phosphate in Environmental Water by Using a Hand-Powered Paper Centrifuge for Preconcentration and Digital Image Colorimetric Sensing

<div>Effect of HLB suspension volume on the color intensity of 2.5 <i>μ</i>M standard (<i>n</i> = 3).</div>

Journal of Analytical Methods in Chemistry

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Figure 5

Figure 5: Field Determination of Phosphate in Environmental Water by Using a Hand-Powered Paper Centrifuge for Preconcentration and Digital Image Colorimetric Sensing 

Figure 5 | Field Determination of Phosphate in Environmental Water by Using a Hand-Powered Paper Centrifuge for Preconcentration and Digital Image Colorimetric Sensing 