What is db1 column?
DB-1 Columns Agilent J&W DB-1 is nonpolar and low-bleed, and operates under high temperature limits. It is an excellent choice for general purpose use in a wide variety of applications. Precision-engineered DB-1 is bonded, crosslinked and solvent rinsable, and is equivalent to USP phase G2.
What are the GC columns?
GC columns contain a stationary phase, typically a polymeric material. It is through the interaction between the analytes and this stationary phase within the column that separation of the analyte into their molecular components can occur.
What are the two types of columns commonly used in GC?
There are two general types of column, packed and capillary (also known as open tubular). Packed columns contain a finely divided, inert, solid support material (commonly based on diatomaceous earth) coated with liquid stationary phase.
What is LC column?
Liquid chromatography (LC) columns, also known as high performance liquid chromatography (HPLC) columns, are used to separate the individual components of a sample for either purification purposes or for analysis.
What is detector in GC?
A chromatography detector is a device used in gas chromatography (GC) or liquid chromatography (LC) to detect components of the mixture being eluted off the chromatography column. The detector is a critical component in the chromatograph.
How many types of columns are there in GC?
Two types of columns are used in gas chromatography: packed columns and capillary columns.
How does FID work in GC?
An FID uses a flame to ionize organic compounds containing carbon. Following separation of the sample in the GC column, each analyte passes through a flame, fueled by hydrogen and zero air, which ionizes the carbon atoms.
What is GC principle?
The analysis performed by a gas chromatograph is called gas chromatography. Principle of gas chromatography: The sample solution injected into the instrument enters a gas stream which transports the sample into a separation tube known as the “column.” (Helium or nitrogen is used as the so-called carrier gas.)