Table 7 Comparison of colorimetric methods for BAC determination
Chromogen | Linearity (mmol L−1) | Accuracy (Recovery%) | Precision (RSD%) | Sample | Determination method | Refs |
|---|---|---|---|---|---|---|
NQS | 0.02–0.21 | 98.65 | 7.38 | urine | Smartphone based POCT | This work |
Ninhydrin | 1.87–6.55 | Not considered in details | Pharmaceutical dosage form | Conventional spectrophotometry | [16] | |
4-chloro-7-nitro-2,1,3-benzoxadiazole | 0.02–0.33 | Not evaluated | Pharmaceutical dosage form | Conventional spectrophotometry | [14] | |
Iron (III)/ potassium hexacyano ferrate | 0.05–23.4 | Not evaluated | 0.71 | Pharmaceutical dosage form | Flow injection spectrophotometry | [17] |
Vanillin Eosin Acetylacetone/ formaldehyde | 0.05–0.16 0.02–0.09 0.02–0.12 | 100.29 101.00 99.49 | 1.02 1.22 0.70 | Pharmaceutical dosage form | Conventional spectrophotometry | [18] |