POST-EXTRACTION SOLVENT FLUSH OF THE PRESSURE RESTRICTOR IN SUPERCRITICAL FLUID EXTRACTION

被引：11

作者：

THOMSON, CA ^{[1
]}

CHESNEY, DJ ^{[1
]}

机构：

[1] MICHIGAN TECHNOL UNIV, DEPT CHEM & CHEM ENGN, HOUGHTON, MI 49931 USA

来源：

JOURNAL OF CHROMATOGRAPHY | 1991年 / 543卷 / 01期

关键词：

D O I：

10.1016/S0021-9673(01)95767-X

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

When using supercritical fluid extraction to isolate and concentrate pesticide residues from plant tissue samples, extraneous components of the plant matrix are extracted in sufficient quantity to cause intermittent obstruction of the pressure restrictor. In some cases, termination of the extraction occurs due to irreversible plugging of the restrictor. It has been determined that a post-extraction solvent flush of the pressure restrictor is sufficient to prevent restrictor obstruction in almost all cases.

引用

页码：187 / 194

页数：8

共 12 条

[1] SUPERCRITICAL FLUID EXTRACTION AS A SAMPLE INTRODUCTION METHOD FOR CHROMATOGRAPHY
ANDERSEN, MR
SWANSON, JT
PORTER, NL
RICHTER, BE
[J]. JOURNAL OF CHROMATOGRAPHIC SCIENCE, 1989, 27 (07) : 371 - 377
[2] ANALYSIS OF FLAVOR AND FRAGRANCE COMPOUNDS USING SUPERCRITICAL FLUID EXTRACTION COUPLED WITH GAS-CHROMATOGRAPHY
HAWTHORNE, SB
KRIEGER, MS
MILLER, DJ
[J]. ANALYTICAL CHEMISTRY, 1988, 60 (05) : 472 - 477
[3] EXTRACTION AND RECOVERY OF ORGANIC POLLUTANTS FROM ENVIRONMENTAL SOLIDS AND TENAX-GC USING SUPERCRITICAL CO2
HAWTHORNE, SB
MILLER, DJ
[J]. JOURNAL OF CHROMATOGRAPHIC SCIENCE, 1986, 24 (06) : 258 - 264
[4] EXTRACTION AND RECOVERY OF POLYCYCLIC AROMATIC-HYDROCARBONS FROM ENVIRONMENTAL SOLIDS USING SUPERCRITICAL FLUIDS
HAWTHORNE, SB
MILLER, DJ
[J]. ANALYTICAL CHEMISTRY, 1987, 59 (13) : 1705 - 1708
[5] SUPERCRITICAL FLUID EXTRACTION AND DIRECT FLUID INJECTION MASS-SPECTROMETRY FOR THE DETERMINATION OF TRICHOTHECENE MYCOTOXINS IN WHEAT SAMPLES
KALINOSKI, HT
UDSETH, HR
WRIGHT, BW
SMITH, RD
[J]. ANALYTICAL CHEMISTRY, 1986, 58 (12) : 2421 - 2425
[6] FUNDAMENTALS AND APPLICATIONS OF SUPERCRITICAL FLUID EXTRACTION IN CHROMATOGRAPHIC SCIENCE
KING, JW
[J]. JOURNAL OF CHROMATOGRAPHIC SCIENCE, 1989, 27 (07) : 355 - 364
[7] SUPERCRITICAL FLUID EXTRACTION COUPLED WITH SUPERCRITICAL FLUID CHROMATOGRAPHY FOR THE SEPARATION OF SULFONYLUREA HERBICIDES AND THEIR METABOLITES FROM COMPLEX MATRICES
MCNALLY, MEP
WHEELER, JR
[J]. JOURNAL OF CHROMATOGRAPHY, 1988, 435 (01): : 63 - 71
[8] SCHAEFFER ST, 1989, ACS SYM SER, V406, P416
[9] SUPERCRITICAL FLUID EXTRACTION PROCEDURE FOR THE REMOVAL OF TRACE ORGANIC-SPECIES FROM SOLID SAMPLES
SCHANTZ, MM
CHESLER, SN
[J]. JOURNAL OF CHROMATOGRAPHY, 1986, 363 (02): : 397 - 401
[10] THOMSON CA, UNPUB

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