Nicotinic acid | Nicotinamide | |
---|---|---|

Linear regression equation | y = 371,678x − 106,410 | y = 649,469x + 33,576 |

r^{2} | 0.9979 | 0.9978 |

Range of linearity (μg/mL) | 1–10 | 1–10 |

Repeatability (RSD, n = 10) | 2.0% | 2.0% |

Reproducibility (RSD of intra-day studies, n = 16) | 2.08% | 2.04% |

LOD (μg/mL) | 0.005 | 0.004 |

LOQ (μg/mL) | 0.018 | 0.013 |

Accuracy (a, recovery; b, RSD; n = 10) | 104.2%^{a}, 0.34%^{b} | 96.4%^{a}, 0.28%^{b} |

LOD, limit of detection; LOQ, limit of quantification; RSD, relative standard deviation.