WebIf HILIC is coupled to MS or CAD detection, use a smaller column, e.g. 100 x 2.1mm or 50 x 2.1mm, packed with 3-5µm particles. Reduce column length only after having considered sample complexity and detector selectivity. For higher separation efficiency and resolution we suggest using either sub 2µm fully porous particles or solid core ... WebMS requires expensive instrumentation and maintenance costs can be high. The charged aerosol detector (CAD®) is a mass-sen- sitive detector capable of directly measuring any nonvolatile and many semivolatile analytes.
Corona charged aerosol detector non-uniform response …
WebMay 10, 2024 · One possible strategy for using CAD for purity testing of ibandronate sodium was the use of long-chain, volatile, basic ion-pairing reagents, which can cause dynamic modification of a C8 reversed phase and thus emulate the mixed-mode mechanism. WebHILIC can be described as a variation of reversed phase chromatography performed using a polar stationary phase. The mobile phase employed is highly organic in nature (> 60-70% … green motion to dismiss
Analysis of organic acids on an Agilent InfinityLab Poroshell …
Web源温度TEM:550 ℃ 碰撞气CAD:Medium 2.3 重复性 实验考察了方法的重复性,选取低( 0.50 μg/L )、中 (10.0 μg/L)、高(100.0 μg/L)三个浓度点连续进样6针,相对 标准偏差RSD在1.49-1.98之间,表明方法及仪器的重复性良好。结 果见表2。 表1. 氨基甲酸乙酯离子 … As a general recommendation for HILIC standard methods, select a 100 or 150mm long column, packed with 3 - 5µm particles and with a 4.6mm id, if using UV detection. If HILIC is coupled to MS or CAD detection, use a smaller column, e.g. 100 x 2.1mm or 50 x 2.1mm, packed with 3-5µm particles. WebJul 11, 2013 · The present invention describes an analytical method for detecting and quantitating poly-sulfated oligosaccharides, including Fondaparinux sodium, using hydrophilic interaction ultra-performance liquid chromatography (HILIC-UPLC) coupled with a charged aerosol detector (CAD) or a mass spectrometer (MS). This analytical method … flying t chuckwagon dinner