gas–liquid chromatography
gas–liquid chromatography A technique for separating or analysing mixtures of gases by
chromatography. The apparatus consists of a very long tube containing the stationary phase, a nonvolatile liquid, such as a hydrocarbon oil coated on a solid support. The sample is often a volatile liquid mixture (e.g. of fatty acids), which is vaporized and swept through the column by a carrier gas (e.g. hydrogen). The components of the mixture pass through the column at different rates and are detected as they leave, either by measuring the thermal conductivity of the gas or by a flame detector.
Gas chromatography is usually used for analysis; components can be identified by the time they take to pass through the column. It is also used for separating mixtures into their components, which are then directly injected into a mass spectrometer in the technique of gas chromatography–
mass spectroscopy.
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Types of the Folktale in the Arab World: A Demographically Oriented Tale-Type Index
Magazine article from: Western Folklore; 7/1/2005; ; 700+ words
; Types of the Folktale in...Demographically Oriented Tale-Type Index. By Hasan...his newest book, Types of the Folktale in...Demographically Onented Tale-Type Index (DOTTI-A...a certain tale-type occurs. In addition...about certain tale-types presumed to have...
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Type O Patients Pose Medical Irony
News Wire article from: AP Online; 6/13/2000; ; 700+ words
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Types of food allergy testing.
Magazine article from: Townsend Letter; 1/1/2008; ; 700+ words
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Types of mountain ranges in the rocky mountain region.
Magazine article from: Focus on Geography; 12/22/2007; ; 700+ words
; ...this article, each type of mountain range...and illustrated. Types of Mountain Ranges There are five basic types of mountain ranges...namely the Banff type, the Lochsa type...type, and the Yampa type. Mountains of the Banff and Lost River types are generally higher...
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Types of Alcoholic Beverages Usually Consumed by Students in 9th-12th Grades - Four States, 2005
Magazine article from: MMWR. Morbidity and Mortality Weekly Report; 7/27/2007; ; 700+ words
; ...beverages. To examine types of alcoholic beverages...included a question on the type of alcohol consumed...was the most prevalent type of alcoholic beverage...availability of particular types of alcoholic beverages...specific information on the type of alcoholic beverage...
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Type A/B behavior pattern and athletic participation: attitudes and actual behavior.
Magazine article from: Journal of Sport Behavior; 6/1/1998; ; 700+ words
; ...profound effect on exercise adherence is the Type A behavior pattern (Pargman & Green, 1990). An individual exhibiting the Type A behavior pattern (TABP) is characterized...in these characteristics are labeled as Type Bs (Chesney, Black, Chadwick, &...
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Type 1 and type 2 diabetes can overlap in teens: a patient can have a genetic predisposition to type 2 diabetes but develop type 1; diagnosis can be difficult.(Adolescent Medicine)
Magazine article from: Internal Medicine News; 11/1/2005; ; 700+ words
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TYPES OF BUSINESS-TO-BUSINESS E-MARKETPLACES: THE ROLE OF A THEORY-BASED, DOMAIN-SPECIFIC MODEL
Magazine article from: Journal of Electronic Commerce Research; 11/1/2008; ; 700+ words
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Type 1, type 2 diabetes can overlap in children.(Metabolic Disorders)
Magazine article from: Family Practice News; 10/15/2005; ; 700+ words
; ...patients with high blood sugar, the distinction between type 1 and type 2 diabetes is straightforward. However, there can be...a California teenager and avid dancer diagnosed with type 2 diabetes 4 years ago, at age 11. "It was kind of...
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Types of alcoholic beverages usually consumed by students in 9th-12th grades--four states, 2005.(Arkansas, Nebraska, New Mexico, and Wyoming)
Newspaper article from: Morbidity and Mortality Weekly Report; 7/27/2007; ; 700+ words
; ...beverages. To examine types of alcoholic beverages...included a question on the type of alcohol consumed...was the most prevalent type of alcoholic beverage...availability of particular types of alcoholic beverages...specific information on the type of alcoholic beverage...
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A to Z of variable star types, An
Book article from: A Dictionary of Astronomy
A to Z of variable star types, An ACV Alpha 2 Canum Venaticorum type ACVO rapidly oscillating Alpha 2 Canum Venaticorum type ACYG Alpha Cygni type AM AM Herculis type AR AR Lacertae type BCEP Beta Cephei type BCEPS Beta Cephei type of short period...
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type
Book article from: The Columbia Encyclopedia, Sixth Edition
...of old style and modern types are often combined. Into the mid-20th cent. type characters were usually...al., Encyclopaedia of Type Faces (5th ed. 2001); D. B. Updike, Printing Types (4th ed. 2001); P. Baines and A. Haslam, Type and Typography (2002...
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Blood Type
Book article from: Genetics
...RELATIONSHIPS BETWEEN BLOOD TYPES AND ANTIBODIES Blood Type Antigens on Red Blood...of the four blood types. On the other hand...individuals with blood type A can only donate...donate to B or AB types. AB individuals can only donate to type AB. However, before...
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Personality, Type A/Type B
Encyclopedia entry from: International Encyclopedia of the Social Sciences
...the Type A pattern, the Type B pattern, and mixtures of the two types. Physical indicators of Type A Behavior Pattern (TABP...Emotionally, such personality types show less frequent irritation...hostility, and aggression than Type A individuals. Psychologically...
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Type and Screen
Encyclopedia entry from: Gale Encyclopedia of Surgery: A Guide for Patients and Caregivers
...disease of the newborn (HDN), a type of anemia also known as erythroblastosis...fetalis. Babies who have a blood type different from their mother...that determine his or her blood type. This fact makes blood typing...paternity testing. The blood types of the child, mother, and...
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