| 用比光谱导数法测定肉制品中NO_3~-和NO_2~-含量的方法 |
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| 引用本文： | 黄志勇,邓满萍.用比光谱导数法测定肉制品中NO_3~-和NO_2~-含量的方法[J].食品工业科技,2001,22(1). |
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| 作者姓名： | 黄志勇 邓满萍 |
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| 作者单位： | 集美大学食品工程系, |
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| 摘 要： | 用比光谱导数法同时测定光谱重叠严重的肉制品中NO-3 和NO-2 含量 ,在不需分离和掩蔽的条件下 ,测定的回收率和精密度均较高 ,得出二者的浓度分别在 0～ 9mg/L和 0～ 9mg/L之内符合线性关系 ,回归的相关系数r均达 0 999以上。探讨了波长、共存物影响和求导间隔等测量条件 ,并将该法应用于肉制品中NO-3 和NO-2 含量的实际测量。
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| 关 键 词： | 比光谱导数 测定 肉制品 硝酸盐 亚硝酸盐 |
Measuring nutrate and nitrite contents by derivative ratio spectrum method |
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| Huang Zhiyong et al.Measuring nutrate and nitrite contents by derivative ratio spectrum method[J].Science and Technology of Food Industry,2001,22(1). |
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| Authors: | Huang Zhiyong |
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| Abstract: | A way of measuring nitrate and nitrite content whos e spectrumsare overlapped badly in admixture,by derivative ratio spectrum metho d,is proposed.The results indicate that their concentrations ranging 0～9mg/L a nd 0～9mg/L are in direct proportion to their values of derivative ratio spectr um without any separations and camouflages.The correlative coefficient“r”is ab ove 0.999.The results of rate of recovery and the RSD tests are satisfactory.Th is paper also discusses some measuring conditions such as wavelength,concomitant ,and the derivative interval.This method is applied to the measurement of nitrat e and nitrite in meat products. |
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| Keywords: | derivative ratio spectrum method measure meat ware nitrate nitrite| |
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