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核心技术专利：CN118964589B侵权必究

核心技术专利：CN118964589B侵权必究

de Martínez N R, Olavarría J M

Acta Physiol Lat Am. 1977;27(1):42-8.

Small quantities of dialyzable sialic acid in toad oviduct were found. 2. About one-third of the dialyzable sialic acid reacts directly in the thiobarbituric acid procedure, a finding which suggests that the other two-thirds of the dialyzable sialic acid were probably derived from low molecular weight compounds containing sialic acid. 3. When a soluble fraction was chromatographed on Dowex 1-X4 column, three fractions (I, II and III) were isolated. Peak I was a material which shows identical to authentic NANA, colorimetrically as well as chromatographically. Several studies have indicated that both peaks, II and III, could be sialic acid-bound compounds of low molecular weight.

在蟾蜍输卵管中发现了少量可透析的唾液酸。2. 大约三分之一的可透析唾液酸在硫代巴比妥酸法中直接发生反应，这一发现表明另外三分之二的可透析唾液酸可能来自含有唾液酸的低分子量化合物。3. 当将可溶性部分在Dowex 1-X4柱上进行色谱分析时，分离出了三个部分（I、II和III）。峰I是一种在比色法和色谱法上都与纯N-乙酰神经氨酸相同的物质。几项研究表明，峰II和峰III可能都是低分子量的唾液酸结合化合物。

de Martínez N R, Olavarría J M

Acta Physiol Lat Am. 1977;27(1):42-8.

Small quantities of dialyzable sialic acid in toad oviduct were found. 2. About one-third of the dialyzable sialic acid reacts directly in the thiobarbituric acid procedure, a finding which suggests that the other two-thirds of the dialyzable sialic acid were probably derived from low molecular weight compounds containing sialic acid. 3. When a soluble fraction was chromatographed on Dowex 1-X4 column, three fractions (I, II and III) were isolated. Peak I was a material which shows identical to authentic NANA, colorimetrically as well as chromatographically. Several studies have indicated that both peaks, II and III, could be sialic acid-bound compounds of low molecular weight.

在蟾蜍输卵管中发现了少量可透析的唾液酸。2. 大约三分之一的可透析唾液酸在硫代巴比妥酸法中直接发生反应，这一发现表明另外三分之二的可透析唾液酸可能来自含有唾液酸的低分子量化合物。3. 当将可溶性部分在Dowex 1-X4柱上进行色谱分析时，分离出了三个部分（I、II和III）。峰I是一种在比色法和色谱法上都与纯N-乙酰神经氨酸相同的物质。几项研究表明，峰II和峰III可能都是低分子量的唾液酸结合化合物。