发明名称 |
METHOD FOR DISTINGUISHING BETWEEN PROTEIN VARIANTS |
摘要 |
Disclosed is a method for distinguishing between protein variants using high field asymmetric waveform ion mobility spectrometry (FAIMS). A method according to the instant invention includes the steps of providing a FAIMS analyzer region defined by a space between two spaced-apart electrodes, and providing predetermined conditions within said FAIMS analyzer region. Ions of an analyte protein are produced from a solution having predetermined properties and including the analyte protein, using a suitable ionization source. The ions are introduced into the FAIMS analyzer region, transmitted therethrough, and detected. An intensity of the detected ions is measured at a predetermined compensation voltage value (CV). At least a difference is determined, between the detected intensity and a reference value, the reference value relating to an expected intensity at the predetermined CV value for a reference form of the analyte protein. The analyte protein is registered as a variant of the reference form, in dependence upon the determined differences. |
申请公布号 |
WO03067261(A1) |
申请公布日期 |
2003.08.14 |
申请号 |
WO2003CA00170 |
申请日期 |
2003.02.07 |
申请人 |
IONALYTICS CORPORATION;GUEVREMONT, ROGER;PURVES, RANDY |
发明人 |
GUEVREMONT, ROGER;PURVES, RANDY |
分类号 |
B01D59/44;G01N27/64;H01J49/00;H01J49/04;H01J49/40;H01J49/42;(IPC1-7):G01N33/68 |
主分类号 |
B01D59/44 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|