Global patent index - EP 0989896 A1

EP 0989896 A1 2000-04-05 - GRADIENT ELUSION METHOD

Title (en)

GRADIENT ELUSION METHOD

Title (de)

GRADIENTENELUTIONSVERFAHREN

Title (fr)

PROCEDE D'ELUTION PAR GRADIENT

Publication

EP 0989896 A1 (DE)

Application

EP 98936315 A

Priority

  • DE 19725639 A
  • EP 9803430 W

Abstract (en)

[origin: DE19725639A1] The invention relates to a method for separating at least two substances by means of liquid chromatography in isocratic conditions, wherein the flow rate is modified in the course of elution (flow gradient chromatography).

IPC 1-7 (main, further and additional classification)

B01D 15/08

IPC 8 full level (invention and additional information)

B01D 15/02 (2006.01); B01D 15/08 (2006.01); B01D 15/18 (2006.01); B01J 20/28 (2006.01); B01J 20/32 (2006.01); G01N 30/32 (2006.01); G01N 30/52 (2006.01)

CPC (invention and additional information)

B01J 20/28042 (2013.01); B01D 15/166 (2013.01); B01D 15/1821 (2013.01); B01J 20/103 (2013.01); B01J 20/28016 (2013.01); B01J 20/28078 (2013.01); B01J 20/287 (2013.01); B01J 20/29 (2013.01); B01J 20/3204 (2013.01); B01J 20/3246 (2013.01); B01J 2220/54 (2013.01); B01J 2220/58 (2013.01); B01J 2220/82 (2013.01); G01N 2030/324 (2013.01); G01N 2030/528 (2013.01)

Citation (search report)

See references of WO 9857722A1

Designated contracting state (EPC)

CH DE FR GB IT LI SE

EPO simple patent family

DE 19725639 A1 19981224; EP 0989896 A1 20000405; JP 2002504855 A 20020212; WO 9857722 A1 19981223

INPADOC legal status

2003-07-02 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20021231

2001-08-22 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010706

2000-04-05 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991009

2000-04-05 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): CH DE FR GB IT LI SE