Research Article
Trace Level Arsenic Quantification through Cloud Point Extraction: Application to Biological and Environmental Samples
Table 4
Determination of arsenic in biological samples.
| Sample | Total As (ng) | As(V) added (ng) | Total As(V) found (ng) | Recovery (%) | Proposed method | ICPAES method | | Proposed method | ICPAES method | Proposed method | ICPAES method |
| Hair* | ND | ND | 20 | | | 99.5 | 100 | Nail* | ND | ND | 10 | | | 96.2 | 98.0 | Urine† | ND | ND | 20 | | | 98.0 | 101.5 |
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; the values given here are average of five measurements. ND: Not detected.
*Concentration in ng g−1. †Concentration in ng mL−1.
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