浩瀚气相色谱仪测定苜蓿青贮料中的有机酸GC7990

Alfalfa silage, the soluble sugar and other raw materials in the role of plant enzymes or microorganisms, part of the conversion of lactic acid, acetic acid, propionic acid, butyric acid and other organic acids to silage pH value decreased, thereby inhibiting the propagation of harmful microorganisms. Therefore, it is very important to determine accurately the content of organic acids in the silage. In the past, lactic acid was measured by distillation, liquid chromatography, enzymatic method, acetic acid,
Tengzhou Xiangying Analytical Technology Co., Ltd. to methyl esterification of the leaching solution, using the program temperature method, the determination of silage at the same time lactic acid, acetic acid, propionic acid, butyric acid content. The results showed that the separation efficiency was good and the recoveries of each component ranged from 97.8% to 101.2%. The linearity of the standard curve was good (R2 = 0.9990 ~ 0.9997). Therefore, the method was applied to determine the content of organic acids in alfalfa silage Is the ideal method. In this case,
苜蓿青贮之后,原料中的可溶性糖等在植物酶或微生物作用下,部分转化为乳酸、乙酸、丙酸、丁酸等有机酸使青贮料的pH值下降,从而抑制有害微生物的繁殖。因此,准确测定青贮料中有机酸含量对青贮品质的评定有重要意义。以往测定乳酸的方法有蒸馏法、液相色谱法、酶法等,乙酸、丙。
滕州市翔鹰分析技术有限公司对浸出液进行甲酯化反应,采用程序升温的方法,同时测定青贮料中乳酸、乙酸、丙酸、丁酸的含量。结果表明:该方法分离效果好,各组分的回收率在97.8%～101.2%之间,重复性好,标准曲线线性关系良好R2=0.9990～0.9997,所以采用此方法测定苜蓿青贮料中有机酸是较为理想的方法。



XiangyingGC7990plus features:
1 excellent performance, competitive price, to meet the customers' choice
2 multi industry adaptability
3 outstanding performance in all kinds of harsh environment
INJ
A variety of sampling ports can be equipped with: packed column inlet, shunt / non shunt capillary inlet,
Hydrogen flame ionization detector (FID)
Maximum use temperature: 400
The minimum detection limit: -12 = 2.5*10 g/s (n-C16)
Linear range: 107 (+ 10%)
 
XiangyingGC7990plus特点：

1. 卓越的性能，具有竞争力的价格，满足广大客户的选择
2. 多行业适应性
   3. 在各种苛刻环境下均表现出色

进样口
多种进样口可配：填充柱进样口、分流/不分流毛细管进样口、
氢火焰离子化检测器（FID） 
***高使用温度：400℃
***小检出限：≤2.5*10 -12 g/s(n-C16)
线性范围：107（±10%）