Search Results - "Stearns, Stanley D."

A fast temperature-programmed second-dimension column for comprehensive two-dimensional gas chromatography by Cai, Huamin, Stearns, Stanley D.

“…The short analysis time and constant temperature environment in the second dimension of two-dimensional comprehensive chromatography frequently causes…”
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Comprehensive two-dimensional gas chromatography using direct flow modulation to extend the secondary dimension separation time by Cai, Huamin, Stearns, Stanley D.

“…•A GCxGC flow modulation method with long secondary time has been proposed and tested.•The method can achieve long secondary dimension duration time, up to…”
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A comprehensive two-dimensional gas chromatography valve modulation method using hold-release primary column flow for long secondary separation time with 100% transfer by Cai, Huamin, Stearns, Stanley D.

“…•A new GCxGC valve modulation method has been proposed and tested.•The method can achieve long secondary dimension duration time up to 60 s.•A long secondary…”
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Hand-portable liquid chromatographic instrumentation by Sharma, Sonika, Tolley, Luke T., Tolley, H. Dennis, Plistil, Alex, Stearns, Stanley D., Lee, Milton L.

“…•Requirements for portable liquid chromatography (LC) instrumentation are outlined.•Advancements in capillary LC columns are briefly reviewed.•Developments…”
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Pulsed discharge helium ionization detector with multiple combined bias/collecting electrodes for gas chromatography by Cai, Huamin, Stearns, Stanley D.

“…► Developed a multi-collecting pulsed discharge helium ionization detector (MC-PDHID). ► It has better sensitivity, response, linearity than those of single…”
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Hand-Portable Gradient Capillary Liquid Chromatography Pumping System by Sharma, Sonika, Plistil, Alex, Barnett, Hal E, Tolley, H. Dennis, Farnsworth, Paul B, Stearns, Stanley D, Lee, Milton L

“…In this work, a novel splitless nanoflow gradient generator integrated with a stop-flow injector was developed and evaluated using an on-column UV-absorption…”
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Compact Ultrahigh-Pressure Nanoflow Capillary Liquid Chromatograph by Zhao, Xiaofeng, Xie, Xiaofeng, Sharma, Sonika, Tolley, Luke T, Plistil, Alex, Barnett, Hal E, Brisbin, Martin P, Swensen, Adam C, Price, John C, Farnsworth, Paul B, Tolley, H. Dennis, Stearns, Stanley D, Lee, Milton L

“…A compact ultrahigh-pressure nanoflow liquid chromatograph (LC) was developed with the purpose in mind of creating a portable system that could be easily moved…”
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Instrumentation for hand-portable liquid chromatography by Sharma, Sonika, Plistil, Alex, Simpson, Robert S., Liu, Kun, Farnsworth, Paul B., Stearns, Stanley D., Lee, Milton L.

“…•Components for a hand-portable LC system were miniaturized and evaluated.•The nano-flow pumping system demonstrated excellent flow rate reproducibility.•The…”
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Gradient nanopump based suppressed ion chromatography using PEEK open tubular columns by Huang, Weixiong, Plistil, Alex, Stearns, Stanley D., Dasgupta, Purnendu K.

“…The progress of open tubular suppressed ion chromatography is reviewed from a broad perspective. Then a suppressed open tubular ion chromatography system,…”
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Radiation Safety Considerations in the Treatment of Canine Skeletal Conditions Using 153Sm, 90Y, and 117mSn by Wendt, Richard E., Selting, Kimberly A., Lattimer, Jimmy C., Wong, Janine, Simón, Jaime, Stevenson, Nigel R., Stearns, Stanley D.

“…ABSTRACTThe treatment of pets, service animals, and pre-clinical research subjects with radionuclides raises concern for the safety of the people who interact…”
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A direct resistively heated gas chromatography column with heating and sensing on the same nickel element by Stearns, Stanley D., Cai, Huamin, Koehn, J. Art, Brisbin, Martin, Cowles, Chris, Bishop, Chris, Puente, Santos, Ashworth, Dale

“…Nickel clad or nickel wired fused silica column bundles were constructed and evaluated. The nickel sheathing or wire functions not only as the heating element…”
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Pulsed discharge emission detector: an element-selective detector for gas chromatography by Wentworth, W.E, Sun, Kefu, Zhang, De, Madabushi, Janardhan, Stearns, Stanley D

“…An element-specific pulsed discharge emission detector (PDED) has been coupled directly with a vacuum UV monochromator so that vacuum UV atomic emissions from…”
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Partial Modulation Method via Pulsed Flow Modulator for Comprehensive Two-Dimensional Gas Chromatography by Cai, Huamin, Stearns, Stanley D

“…A partial modulation method by using a pulsed-flow modulator for comprehensive two-dimensional gas chromatography is proposed. The method is based on the fact…”
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Characterization of the Pulsed Discharge Electron Capture Detector by Cai, Huamin, Wentworth, Wayne E, Stearns, Stanley D

“…A new version of the pulsed discharge electron capture detector (PDECD) has been developed and characterized. Changes to the old version include a slightly…”
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Pseudolinear Gradient Ultrahigh-Pressure Liquid Chromatography Using an Injection Valve Assembly by Xiang, Yanqiao, Liu, Yansheng, Stearns, Stanley D, Plistil, Alex, Brisbin, Martin P, Lee, Milton L

“…The use of ultrahigh pressures in liquid chromatography (UHPLC) imposes stringent requirements on hardware such as pumps, valves, injectors, connecting tubing,…”
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Determination of percent composition of a mixture analyzed by gas chromatography: Comparison of a helium pulsed-discharge photoionization detector with a flame ionization detector by Dojahn, Julie G., Wentworth, W.E., Deming, Stanley N., Stearns, Stanley D.

“…We present the results of a study of percent composition for a mixture which has been separated by gas chromatography and analyzed using helium…”
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Development and characterization of chlorine-selective pulsed discharge emission detector for gas chromatography by Sun, Kefu, Wentworth, Wayne E, Stearns, Stanley D

“…A novel chlorine-selective pulsed discharge emission detector (Cl-PDED) for gas chromatography has been developed based on a reaction of krypton with chlorine…”
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Pulsed Discharge Electron Capture Detector Operating in the Constant-Current Mode by Means of Feedback dc Bias Voltage by Cai, Huamin, Stearns, Stanley D, Wentworth, Wayne E

“…A feedback dc bias voltage has been utilized to established a constant-current operation mode (cc-mode) for the pulsed discharge electron capture detector…”
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Characterization of chlorinated compounds using a dual chlorine-selective pulsed discharge emission detector–helium-pulsed discharge photoionization detector system by Sun, Kefu, Wentworth, Wayne E, Stearns, Stanley D

“…The Cl-selective pulsed discharge emission detector (Cl-PDED) response is dependent only upon the Cl content, irrespective of the molecular structures of the…”
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Applications using the chlorine-selective pulsed discharge emission detector by Sun, Kefu, Wentworth, Wayne E, Stearns, Stanley D

“…The use of the chlorine-selective pulsed discharge emission detector (Cl-PDED) for the GC analyses of EPA mixtures 502, 612, 624, organochlorine pesticides,…”
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