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近红外反射光谱分析技术快速检测复合化学肥料中肉骨粉含量的研究

Keywords: 肉骨粉复合化学肥料近红外反射光谱

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Abstract:

肉骨粉是产生牛海绵状脑病(BSE)的主要原因,根治BSE很有必要研究饲料和肥料中的肉骨粉的检出方法,本文探讨了利用近红外反射光谱(NIRS)分析技术快速检测复合化学肥料中肉骨粉含量的可行性,对混合有肉骨粉的4种复合肥料样品和这些所有样品,采用偏最小二乘法(PLS),获得5个校正模型的决定系数(R^2)分别为0.9989、0.9957、0.9977、0.9969和0.9955.相对标准偏差(RSD)分别为3.82%、4.07%、3.92%、3.99%和5.13%;检验集的真值和模型预测值的决定系数(r^2)分别为0.9951、0.9981、0.9960、0.9943和0.9884,RSD分别为6.74%、2.58%、3.55%、6.17%和7.44%.结果表明,利用NIRS分析技术可以成功检测出复合肥料中肉骨粉的含量。

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