Global Patent Index - EP 0859949 A4

EP 0859949 A4 2000-03-29 - PROCESS FOR EXTRACTING COMPOUNDS FROM SAMPLE MATRICES

Title (en)

PROCESS FOR EXTRACTING COMPOUNDS FROM SAMPLE MATRICES

Title (de)

VERFAHREN ZUR EXTRAKTION VON VERBINDUNGEN AUS MATRIXPROBEN

Title (fr)

PROCEDE PERMETTANT D'EXTRAIRE DES COMPOSES DE MATRICES DE PRELEVEMENT

Publication

EP 0859949 A4 (EN)

Application

EP 96939594 A

Priority

  • US 9617922 W
  • US 55556595 A
  • US 1924396 P

Abstract (en)

[origin: WO9717601A1] The present invention provides a process for the extraction and purification of predetermined chemical compounds, e.g., dioxin derivatives from a sample matrix, e.g., blood serum. The present invention chemically destroys potentially interfering components in a sample matrix, making the steam distillation of dioxin derivatives possible.

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

G01N 1/34

IPC 8 full level (invention and additional information)

G01N 1/10 (2006.01); B01D 11/04 (2006.01); C07D 307/91 (2006.01); C07D 319/24 (2006.01); G01N 1/34 (2006.01)

CPC (invention and additional information)

C07D 307/91 (2013.01); C07D 319/24 (2013.01)

Citation (search report)

  • [Y] US 5149444 A 19920922 - HOCH ROBERT [US]
  • [A] US 5096600 A 19920317 - HOCH ROBERT [US]
  • [Y] ZWICKENPFLUG W., RICHTER E.: "Distillation-extraction procedure for the analysis of TCDD in biological samples", CHEMOSPHERE, vol. 17, no. 4, 1988, pages 647 - 650, XP000872106
  • [A] SAWYER, DONALD T., MARTELL ARTHUR EARL: "Process technology for hazardous waste remediation", INDUSTRIAL ENVIRONMENTAL CHEMISTRY, 1992, US, pages 213 - 227, XP002129095
  • See also references of WO 9717601A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9717601 A1 19970515; AU 7695496 A 19970529; EP 0859949 A1 19980826; EP 0859949 A4 20000329; JP 2000500386 A 20000118

INPADOC legal status


2001-07-11 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Date of withdrawal: 20010504

2000-03-29 [A4] SUPPLEMENTARY SEARCH REPORT

- Ref Legal Event Code: A4

- Effective date: 20000216

2000-03-29 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

1998-08-26 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19980608

1998-08-26 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE