Determination of tryptophan in feeds
全国饲料工业标准化技术委员会(SAC/TC 76)
本标准规定了饲料中色氨酸含量测定的高效液相色谱法和分光光度法。本标准适用于饲料原料、配合饲料、浓缩饲料和精料补充料中色氨酸的测定。
高效液相色谱法的定量限为0.02%；当试样最大称样量为700 mg，水解液稀释倍数为25倍时，分光光度法的定量限为0.04%。
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