EFFECTS OF MICROPORES ON PEAK SHAPE AND RETENTION VOLUME IN GAS-SOLID CHROMATOGRAPHY

被引：22

作者：

OBERHOLTZER, JE

ROGERS, LB

机构：

[1] Department of Chemistry, Purdue University, Lafayette

[2] Arthur D. Little, Acorn Park, Cambridge

来源：

ANALYTICAL CHEMISTRY | 1969年 / 41卷 / 12期

关键词：

D O I：

10.1021/ac60281a010

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A high-precision gas chromatograph has been used to study porosity effects by comparing the elution behavior of methane, ethane, and isobutane on 4A and 5A molecular sieves. Methane and ethane, which could enter the sieve crystallites, showed tailing independent of sample size. For the first time in gas chromatography, changes in retention volume were observed with changes in flow rate. Furthermore, methane and ethane showed a pronounced decrease in column efficiency with increasing temperature in the mass-transfer limited region rather than an increase. Those effects were attributed to slow diffusion within the zeolite because isobutane, which was excluded from the zeolite pores, did not show those effects. © 1969, American Chemical Society. All rights reserved.

引用

页码：1590 / +

页数：1

共 38 条

[1] RESTRICTED DIFFUSION OF MACROMOLECULES THROUGH AGAR-GEL MEMBRANES [J].

ACKERS, GK ;

STEERE, RL .

BIOCHIMICA ET BIOPHYSICA ACTA, 1962, 59 (01) :137-&

[2] MOLECULAR EXCLUSION + RESTRICTED DIFFUSION PROCESSES IN MOLECULAR-SIEVE CHROMATOGRAPHY [J].

ACKERS, GK .

BIOCHEMISTRY, 1964, 3 (05) :723-+

[3] CHARACTERIZATION OF SELECTED HEAVY-METAL SALTS AS ADSORBENTS FOR GAS CHROMATOGRAPHY [J].

ALTENAU, AG ;

ROGERS, LB .

ANALYTICAL CHEMISTRY, 1964, 36 (09) :1726-&

[4] GAS CHROMATOGRAPHIC ANALYSIS OF NORMAL AND BRANCHED CHAIN HYDROCARBONS IN THE RANGE C7 TO C20 USING MOLECULAR SIEVE [J].

BARRALL, EM ;

BAUMANN, F .

JOURNAL OF GAS CHROMATOGRAPHY, 1964, 2 (08) :256-260

[5]

BARRER RM, 1966, SCIENCE, V153, P556

[6] ELECTROSTATIC ASPECTS OF PHYSICAL ADSORPTION - IMPLICATIONS FOR MOLECULAR SIEVES AND GASEOUS ANESTHESIA [J].

BENSON, SW ;

KING, JW .

SCIENCE, 1965, 150 (3704) :1710-&

[7]

Breck D.W., 1964, J CHEM EDUC, V41, P678, DOI [10.1021/ed041p678, DOI 10.1021/ED041P678]

[8] .1. INACCURACY OF MOVING BUBBLE FLOW METER IN LOW FLOW RATE REGION .2. A SIMPLE AND ACCURATE METHOD OF FLOW RATE MEASUREMENT [J].

CZUBRYT, JJ ;

GESSER, HD .

JOURNAL OF GAS CHROMATOGRAPHY, 1968, 6 (10) :528-&

[9] A COMPARATIVE STUDY OF INFLUENCE OF RESTRICTED DIFFUSION UPON MOVING RATE OF SOLUTE IN VARIOUS FORMS OF CHROMATOGRAPHY [J].

DELIGNY, CL .

JOURNAL OF CHROMATOGRAPHY, 1968, 36 (01) :50-&

[10] THEORETICAL PLATES IN GAS CHROMATOGRAPHY - EFFECTS OF DISTRIBUTION RATIO, VISCOSITY, AND AMOUNT OF LIQUID PHASE [J].

DUFFIELD, JJ ;

ROGERS, LB .

ANALYTICAL CHEMISTRY, 1960, 32 (03) :340-343

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