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Table 6 Evaluation of BAC stability in urine by applying the proposed smartphone-based colorimetric POCT method (n = 3)

From: Smartphone based colorimetric point-of-care sensor for abused drugs: case of baclofen determination in urine

Stability approach

Recovery%

0.07 mmol L−1 BAC in urine

0.14 mmol L−1 BAC in urine

Bench-top

111.96

111.88

Extract

87.58

83.51

Freeze–thaw

104.42

97.38

Long term

108.13

104.59

Stock solution 4 °C

25 °C

104.42

113.93

102.27

112.23

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BMC Chemistry

ISSN: 2661-801X

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