| 产品名称 : | PH2075 | 甲基橙-苯胺蓝指示剂 Methyl Orange-Aniline Blue Indicator |
| 产品品牌 : | 飞净 PHYGENE |
用酸溶液溶解试样,溶液中游离的H+用氢氧化钠溶液滴定,以甲基橙-苯胺蓝作为滴定终点指示液,通过消耗的氢氧化钠的量计算出试样中的氨基含量,从而得到脱乙酰基度。
称取于105°C±2°C烘干至恒重的试样0.2g,精确至0.0001g,置于250mL锥形瓶中,加入30mL HCL标准滴定溶液(0.1mol/L),将锥形瓶置于电磁搅拌器座上。在20°C~25°C下搅拌至试样溶解后,加入2滴~3滴甲基橙—苯胺蓝指示液。
常温运输与保存,有效期12个月
The sample is dissolved in an acidic solution, and the free H+ ions in the solution are titrated with sodium hydroxide solution using methyl orange-aniline blue as the indicator for the endpoint. The amino content of the sample is calculated based on the amount of sodium hydroxide consumed, thereby determining the degree of deacetylation.
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