搜索结果: 1-15 共查到“理学 Gas chromatography”相关记录24条 . 查询时间(0.14 秒)
Retention Behavior on Aminoethyl-modified Poly(p-phenylene terephthalamide) Fiber Stationary Phases in Gas Chromatography
Retention Behavior Aminoethyl-modified Poly(p-phenylene terephthalamide)
2010/9/17
Surface derivatization of Kevlar, poly(p-phenylene terephthalamide), fiber has been studied along with the evaluation of the surface characteristics of the chemically-modified fiber as the stationary ...
Trace Analysis of Polycyclic Aromatic Hydrocarbons Using Gas Chromatography–Mass Spectrometry Based on Nanosecond Multiphoton Ionization
Trace Analysis Polycyclic Aromatic Hydrocarbons Gas Chromatography–Mass Spectrometry Based Nanosecond Multiphoton Ionization
2010/9/15
Gas chromatography/resonance-enhanced multiphoton ionization/time-of-flight mass spectrometry (GC/REMPI-TOFMS) using an ultraviolet nanosecond laser was employed in the trace analysis of polycyclic ar...
Rapid Temperature-Programmed Separation and Retention Prediction on a Novel Packed-Capillary Column in Gas Chromatography
Temperature-Programmed Separation Retention Prediction Novel Packed-Capillary Column
2010/9/13
Novel packed-capillary columns for gas chromatography were developed with a thin-wall stainless-steel capillary of 1.0 mm i.d.; and rapid temperature-programmed separations have been carried out after...
Simultaneous Determination of Estradiol Valerate and Medroxyprogesterone Acetate in a Tablet Formulation by Gas Chromatography–Mass Spectrometry
Estradiol Valerate Medroxyprogesterone Acetate Gas Chromatography–Mass Spectrometry
2010/9/19
A new and simple gas chromatography–mass spectrometry (GC-MS) method has been developed for simultaneous determination of estradiol valerate (EV) and medroxyprogesterone acetate (MPA) in a tablet form...
Pressurized Liquid Extraction and Cleanup Procedure for the Determination of Pyrethroids in Soils Using Gas Chromatography/Tandem Mass Spectrometry
Pressurized Liquid Extraction Cleanup Procedure Pyrethroids Soils Using Gas Chromatography/Tandem Mass Spectrometry
2010/9/20
An analytical method for the simultaneous determination of 12 pyrethroids in soil samples was developed using gas chromatography tandem quadrupole mass spectrometry. Pyrethroids were extracted by pre...
Determining the Henry’s Law Constants of THMs in Seawater by Means of Purge-and-Trap Gas Chromatography (PT-GC): The Influence of Seawater as Sample Matrix
Law Constants Seawater Means Purge-and-Trap Gas Chromatography Sample Matrix
2010/9/13
The influence of seawater salts as salting out agents on the purge-and-trap gas chromatography (PT-GC) determination of trihalomethanes (THMs) was studied. This is particularly important since seawate...
Measurements of photo-oxidation products from the reaction of a series of alkyl-benzenes with hydroxyl radicals during EXACT using comprehensive gas chromatography
photo-oxidation products alkyl-benzenes hydroxyl radicals EXACT comprehensive gas hromatography
2009/3/11
Photo-oxidation products from the reaction of a series of alkyl-benzenes, (benzene, toluene, p-xylene and 1,3,5-trimethyl-benzene) with hydroxyl radicals in the presence of NOx have been investigated ...
Comprehensive two-dimensional gas chromatography（GC × GC）measurements of volatile organic compounds in the atmosphere
Comprehensive two-dimensional gas chromatography volatile organic compounds atmosphere
2009/3/10
During the MINOS campaign in August 2001 comprehensive two-dimensional gas chromatography (GC x GC) was applied to the in situ measurements of atmospheric volatile organic compounds (VOCs) at the Fino...
In-situ measurement of reactive hydrocarbons at Hohenpeissenberg with comprehensive two-dimensional gas chromatography (GC×GC-FID): use in estimating HO and NO3
hydrocarbons Hohenpeissenberg two-dimensional gas chromatography HO NO3
2008/11/27
During a field campaign at the Meteorological Observatory Hohenpeissenberg (MOHp) in July 2004, volatile organic compounds (VOCs) were measured using comprehensive two-dimensional gas chromatography ...
Memory Effects in Compound-Specific D/H Analysis by Gas Chromatography/Pyrolysis/Isotope-Ratio Mass Spectrometry
Compound-Specifi c D/H Analysis Memory Effects
2014/4/8
Compound-specific analyses of lipid D/H ratios often
encounter ranges of 300‰ or more, and experiments
using D-enriched water to study fractionations often
extend the range up to 1000‰. Here ...
Reverse Phase Gas Chromatography III-Surfactant Head Group Weight Fraction and Some Measured Polarity Terms
alkanolamides polyoxyethylenated amines polarity measu hydrophile weight fraction
2007/12/13
Reverse Phase Gas Chromatography III-Surfactant Head Group Weight Fraction and Some Measured Polarity Terms。
Speciation of Volatile Selenium Species in Plants Using Gas Chromatography/Inductively Coupled Plasma Mass Spectrometry
gas chromatography/inductively coupled plasma mass spectrometry (GC/ICPMS) solid phase microextraction (SPME) selenium speciation bioremediation Brassica juncea soil
2007/12/13
Gas chromatography/inductively coupled plasma mass spectrometry (GC/ICPMS) coupled with solid phase microextraction can provide a simple, extremely selective and sensitive technique for the analysis...
Polymer-Coated Fibrous Packing Materials in Metal Capillary Gas Chromatography
fiber stationary phase polymer coating metal capillary gas chromatography Polywax
2007/12/13
Polymer-Coated Fibrous Packing Materials in Metal Capillary Gas Chromatography。。
On-Line Coupling of In-Tube Solid Phase Microextraction to Capillary Gas Chromatography for Trace Analysis of Aqueous Samples
in-tube microextraction solid phase microextraction on-line extraction sample pretreatment capillary gas chromatography
2007/12/13
On-Line Coupling of In-Tube Solid Phase Microextraction to Capillary Gas Chromatography for Trace Analysis of Aqueous Samples。
Reverse Phase Gas Chromatography II-Polarity Terms of Some Nitrogen-Containing Surfactants and Simulated Hydrophobic Tails
Alkanolamides-Polyoxyethylenates-Polarit
2007/12/13
Reverse Phase Gas Chromatography II-Polarity Terms of Some Nitrogen-Containing Surfactants and Simulated Hydrophobic Tails。