Multiple short pass glass capillary gas chromatography

Jennings, Walter; Settlage, J. A.; Miller, Roger J.

doi:10.1002/jhrc.1240020713

Cited by 22 publications

(4 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In fact, Gupta and Nikelly (25) suggest that 2D GC is the method of choice for mixture analysis when a more specific GC/MS method is not available (23). These recent results, as well as other successful applications of 2D GC to a variety of analytical problems, are further evidence that the earlier suggestions 5 t -of the possible value of higher dimensional GC (1,2,16) are well-founded.…”

Section: Instrumentation For Mdgcmentioning

confidence: 96%

See 1 more Smart Citation

Multidimensional GC for qualitative IR and MS of mixtures

Wilkins¹

1994

Anal. Chem.

View full text Add to dashboard Cite

Section: Instrumentation For Mdgcmentioning

confidence: 96%

“…A number of researchers have demonstrated the potential of MDGC for the analysis of complex mixtures (12)(13)(14)(15)(16)). In addition, the Siemens Sichromat 2 is now available.…”

Section: Theorymentioning

confidence: 99%

Multidimensional GC for qualitative IR and MS of mixtures

Wilkins¹

1994

Anal. Chem.

View full text Add to dashboard Cite

“…MDGC of the second class requires gas stream switching, and Dean's valve-free switching method has been the most popular procedure for changing the direction of gas flow. There is renewed interest in using mechanical rotary valves in MDGC and development activities have aimed at obtaining an extremely low-volume, high-temperature valve that can be used in recycle applications [250][251][252] . Gas stream switching has also been applied to backflush procedures [253], and there is interest in using fluidic switching in MDGC systems [254].…”

Section: Multidimensional Gas Chromatographymentioning

confidence: 99%

Aspects of High-Resolution Gas Chromatography as Applied to the Analysis of Hydrocarbon Fuels and Other Complex Organic Mixtures. Volume 1

Rubey¹

1985

View full text Add to dashboard Cite

Symmetric elution zone profile 3 Partially disengaged solute zones 4 Block diagram of basic systems approach 5 Three general forms of Chromatographie zone profiles Ig 6 Different combinations of solute zone profiles. 17 7 Rapidly generated chromatogram of a jet fuel. . 8 Chromatogram of a jet fuel obtained with a Pyrex glass open tubular column 9 Gaussian and exponentially modified Gaussian elution zone profiles 10 Series of normal paraffins eluted from a contaminated column 11 Elution behavior after removing contaminated section of column 12 Open tubular column gas chromatograms that exhibit unusual baseline behavior 13 Undesirable quantitative behavior 41 14 Relationship of three-component gas Chromatographie compromises 4 3 15 Relationship of admitted solute versus solute zone variance 44 16 Graphic procedures for measuring solute zone asymmetry 4 6

show abstract

“…Previously, a circulatory GC was introduced at the macro-scale level, where a macro-scale column was inserted into a single fluidic loop of a column, valve, and pump. [60][61][62][63][64][65][66][67][68][69][70] However, its advantages were not evident in terms of both performance and size in comparison with conventional macro-scale GCs. The miniaturization of a circulatory GC has not been feasible due to the lack of highprecision machining technology as well as potential bandbroadening of target molecules due to significant turbulence caused by the existing micropump technology.…”

Section: Introductionmentioning

confidence: 99%

A miniature closed-loop gas chromatography system

Hsieh

Kim

2016

Lab Chip

View full text Add to dashboard Cite

This paper reports the characterization of a miniaturized circulatory column system that is capable of magnifying the effective column length by forming a circulatory loop with chip-scale columns, thus ultimately achieving high-efficiency target separation. The circulatory column system is composed of a tandem of 25 cm microcolumns and six valves for fluidic flow control in order to enable chromatographic separation in circulatory motions while requiring only 5.5 kPa of pressure, which current micropumps are currently capable of supplying. The developed column system (1) successfully demonstrated 16 times elongation of a virtual column length up to 800 cm by only utilizing two 25 cm microcolumns, which is the longest column length reported by any MEMS-scale functioning GC column, (2) achieved a high theoretical plate number of 68,696 with pentane circulating after 15.5 circulatory cycles, which corresponds to the plate number per length-pressure of 1611 plate m(-1) kPa(-1), the highest record reported yet, and (3) demonstrated successful separation of target molecules during circulation by utilizing a pentane/hexane mixture, resulting in magnification of the two corresponding peaks via circulation.

show abstract

Multiple short pass glass capillary gas chromatography

Cited by 22 publications

References 4 publications

Multidimensional GC for qualitative IR and MS of mixtures

Multidimensional GC for qualitative IR and MS of mixtures

Aspects of High-Resolution Gas Chromatography as Applied to the Analysis of Hydrocarbon Fuels and Other Complex Organic Mixtures. Volume 1

A miniature closed-loop gas chromatography system

Contact Info

Product

Resources

About