Research Article
Determination of Glycerin from a Marketed Personal Care Product Using Gas Chromatography
| % of nominal value | Estimated concentration of final solution in mL/100 mL* | Estimated recovery % | Actual concentration of final solution (mg/mL)* | Average assay* (mL/100 mL) | Actual recovery % | Accuracy % | %RSD |
| 100 | 9.62 | — | 4.89 | 9.62 | — | — | 0.01 | 80 | 8.08 | 83.99 | 4.10 | 8.07 | 83.88 | 99.91 | 0.67 | 110 | 10.48 | 108.94 | 5.37 | 10.57 | 109.87 | 100.80 | 120 | 11.35 | 117.98 | 5.78 | 11.38 | 118.29 | 100.20 |
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Average from three replicate injections from sample preparations. The recovery study is carried out over three-concentration range.
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