公开(公告)号：EP1480751A2

公开(公告)日：2004-12-01

申请号：EP03743695.3

申请日：2003-02-25

申请人： Cognis Corporation

发明人： TSENG, Ching-Hui ,  MA, Kangming ,  WANG, Nan ,  MCFADDEN, Daniel

IPC分类号： B01L3/00

CPC分类号： G01N21/3563 ,  G01N21/85 ,  G01N33/10 ,  G01N2021/0339 ,  G01N2021/8592

摘要： A process for detecting low levels of a predetermined quality trait in an inhomogeneously distributed particulate substrate (22) involving the steps of: (a) providing a particulate substrate (22) to be analyzed; (b) providing a spectrometer (12) with an electromagnetic detector capable of performing spectroscopic measurements with electromagnetic radiation; (c) providing a rotatable sample holder (14) having a transparent area through which electromagnetic radiation may pass; (d) providing a tumbling member (18) located within the rotatable sample holder (14) for tumbling the particulate substrate (22) contained therein; (e) introducing the particulate substrate (22) into the rotatable sample holder (14); (f) simultaneously rotating and tumbling the particulate substrate (22) contained within the rotatable sample holder (14); and (g) activating the spectrophotometer (12).