亚洲日韩精品无码专区网站_亚洲日本一区二区_亚洲Av无码专区国产乱码DVD_亚洲精品永久在线观看

畜牧人

標題: 粗蛋白用硫酸銨校準 [打印本頁]
作者: ～APT～    時間: 2013-10-10 14:01
標題: 粗蛋白用硫酸銨校準
粗蛋白中，用硫酸銨校準的話，硫酸銨應該稱重量多少啊。
作者: 最愛魔獸    時間: 2013-10-11 21:24
國標不是有，0.2g
作者: 水鄉紅傘    時間: 2013-10-12 19:51
國標是 0.2g,但在實際中0.2g有時會出現鹽酸滴定超出25ml,所以我都是稱0.1g



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亚洲日韩精品无码专区网站_亚洲日本一区二区_亚洲Av无码专区国产乱码DVD_亚洲精品永久在线观看 
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