Dolan T, Legette L, McNeal J, Malanoski A J
J Assoc Off Anal Chem. 1978 Jul;61(4):982-5.
A rapid analytical procedure was investigated for measuring the fluoride content of deboned meat, using a specific ion electrode. The method involves a defatting procedure followed by chelation with EDTA before final solubilization and measurement. Fluoride content is determined by comparison to a standard curve on 2-cycle semi-logarithmic graph paper of fluoride ion vs. millivolt readings. The method is applicable to hand and mechanically deboned pork, beef, and poultry within a range of from 0.7 to 25.0 ppm fluoride. Higher concentrations may be measured by analyzing additional standards and extending the curve into a third cycle. The curve is not linear below 0.7 ppm. Samples less than 0.7 ppm may be estimated by extrapolation. Studies with fortified samples indicate average recoveries of 92 +/- 4.2%. The standard deviation of duplicates within the laboratory is 0.5 ppm in the range stated above.
研究了一种使用特定离子电极测量去骨肉中氟化物含量的快速分析方法。该方法包括脱脂步骤，然后在最终溶解和测量之前用乙二胺四乙酸（EDTA）进行螯合。通过与氟离子对毫伏读数的双周期半对数图纸上的标准曲线进行比较来测定氟化物含量。该方法适用于氟化物含量在0.7至25.0 ppm范围内的手工去骨和机械去骨猪肉、牛肉及家禽肉。更高浓度可通过分析额外标准并将曲线扩展到第三个周期来测量。低于0.7 ppm时曲线不是线性的。低于0.7 ppm的样品可通过外推法估算。对强化样品的研究表明平均回收率为92±4.2%。在上述范围内，实验室重复测量的标准偏差为0.5 ppm。
