Have you ever tried measuring ionic analytes or organic acids with High-Performance Liquid Chromatography (HPLC)? Good luck with that!

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The scope of HPLC is very limited for analyses of standard anions, cations, organic acids, and sugars in water and various foods, for example. For such analyses, ion chromatography (IC) is the better solution.

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Why? IC can separate multiple ions and detect them using a conductivity detector. And because chemical suppression lowers background conductivity, sensitivity is not an issue, making IC suitable for trace- and ultratrace-level measurements.

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您曾经尝试过用高效液相色谱法(HPLC)测量离子分析物或有机酸吗?祝你好运!

高效液相色谱的范围是非常有限的分析标准阴离子,阳离子,有机酸,糖在水和各种食物,例如。离子色谱(IC)是较好的分析方法。

为什么?IC可以分离多个离子,并使用电导率检测器检测它们。由于化学抑制降低了背景电导率,灵敏度不是问题,使IC适用于痕量和超痕量测量。

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点击下面获取您个人的白皮书“当HPLC失效:食品、水和药物分析中的IC”,并了解所有关于抑制离子色谱的可能性。本白皮书提供了HPLC和IC之间的区别,IC抑制的好处,以及HPLC无法实现的IC典型应用的信息。亚博app官网赞助意甲

metrhm离子色谱的主要优点

  1. 样品基质对分离的影响不大
  2. 不含金属的系统
  3. 流动相中不需要有机溶剂
  4. 大的校准范围:测量样品的浓度从百分比下降到ng/L轻松
  5. 全自动内联样品制备可能
  6. 多种不同的色谱柱材料和尺寸可用于特定的分离挑战
  7. 流动相和辅助溶液的直接制备和处理

metrhm Suppressor Module:为什么它省钱

The patented Metrohm Suppressor Module, or MSM for short, consists of a small rotor containing three cartridges filled with ion exchanger resin (see video). While the first cartridge is used for suppression, a regeneration step is performed on the second cartridge. Meanwhile, the third cartridge undergoes a rinsing step. Thanks to the three-cartridge system, a freshly regenerated cartridge is always available for every new sample – there is no idle time.

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Because it is self-regenerating, our MSM is not a consumable that needs to be replaced. The anion MSM comes with a 10-year warranty. You can therefore rely on long years of accurate performance for your IC system.

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获得专利的Metrohm Suppressor Module,简称MSM,由一个小转子组成,包含三个充满离子交换树脂的墨盒(见视频)。当第一墨盒用于抑制时,在第二墨盒上执行再生步骤。与此同时,第三个墨盒进行冲洗。由于三盒系统,新鲜再生的墨盒总是可用于每个新样品-没有空闲时间。

因为它是自我再生的,所以我们的MSM不是需要更换的消耗品。阴离子MSM有10年保修期。因此,您可以依靠IC系统多年的准确性能。