方案摘要
方案下载应用领域 | 制药/生物制药 |
检测样本 | 其他 |
检测项目 | 其他 |
参考标准 | 暂无 |
On the Agilent OpenLAB CDS, fraction collection can be performed with a UV detector, or any additional detector, such as an Evaporative Light Scattering Detector (ELSD). In another Technical Overview1 , we described a simple way to split the preparative fl ow on the Agilent preparative LC systems to trigger the collection with an ELSD. This Technical Overview shows how to optimize peak-based fraction collection triggered by an ELSD. We describe the system setup, the delay calibration between detector and fraction collector, and the use of the variable light sensitivity of the Agilent 1260 Infi nity Evaporative Light Scattering Detector. We also discuss the peak-based fraction collection settings required to achieve the best purity and recovery.
Abstract
On the Agilent OpenLAB CDS, fraction collection can be performed with a UV detector, or any additional detector, such as an Evaporative Light Scattering Detector (ELSD). In another Technical Overview1 , we described a simple way to split the preparative fl ow on the Agilent preparative LC systems to trigger the collection with an ELSD.
This Technical Overview shows how to optimize peak-based fraction collection triggered by an ELSD. We describe the system setup, the delay calibration between detector and fraction collector, and the use of the variable light sensitivity of the Agilent 1260 Infi nity Evaporative Light Scattering Detector. We also discuss the peak-based fraction collection settings required to achieve the best purity and recovery.
Introduction
The evaporative light scattering detector (ELSD) is commonly used to detect compounds without a chromophore. Therefore, it is ideal for the purifi cation of amino acids, peptides, carbohydrates, and lipids. Using the Agilent Splitter Kits corresponding to the required purifi cation scale on the Agilent Purifi cation System1 , the signal from the ELSD can be used for peak-based collection of the target compounds. To ensure the best reliability and purity of the collected fractions, several parameters need to be optimized.
The delay time between the detector and the fraction collector needs to be measured. This delay is the difference between the time the compound is monitored in the detector, and the time when this compound reaches the diverting valve of the fraction collector. Correct measurement of this delay time is an important step of the system optimization. This procedure is automated on the Agilent 1260 Infinity Fraction Collectors using Agilent Lab Advisor Software.
This Technical Overview also describes how to improve parameters such as the light intensity of the ELSD, and the fraction collector settings.
Conclusion
This Technical Overview shows how to optimize fraction collection with the Agilent 1260 Infi nity Evaporative Light Scattering Detector. The delay calibration performed with the Lab Advisor Software provides a simple and quick method to calibrate the delay volume between detector and fraction collection. With the possibility of light intensity adjustment, the 1260 Infi nity ELSD offers a fl exible solution for preparative liquid chromatography by increasing or decreasing the sensitivity of the detector with respect to the sample concentration. These features ensure best reliability of the purifi cation results.
使用 Agilent 8890 气相色谱和 TCD/FID 系统分析氢气中的氦气、 氩气、氮气和烃类杂质
使用 Agilent InfinityLab 在线液相色谱 系统实现对流动化学反应器中反应过 程的实时监测
使用配备氦气节省模块以进行载气 切换的 Agilent 8850 气相色谱系统 分析香草提取物的方法转换
相关产品
CrossLab企业资产管理服务
Agilent 8890 气相色谱系统
Agilent Cary 3500 紫外可见分光光度计
Agilent Resolve 手持拉曼系统
Agilent TRS100 激光拉曼系统
Agilent 1290 Infinity II 二维液相色谱解决方案
Agilent 1290 Infinity II 液相色谱系统
Agilent 1260 Infinity II 液相色谱系统
Agilent 7900 电感耦合等离子体质谱仪
Agilent Bravo 自动液体处理平台
Agilent 7010C 三重四极杆气质联用系统
Agilent 7000E 三重四极杆气质联用系统
Agilent 5977C GC/MSD
Agilent 1290 Infinity II 高通量系统
Agilent 1290 Infinity II 方法转移系统
关注
拨打电话
留言咨询