New ways to identify detect analyze

gases & liquids from scratch

Gas Chromatography - UV spectroscopy (GC-UV) is the only analytical technique that can accurately identify and quantify a wide range of inorganic and organic compounds non-destructively.

What you'll learn

Advantages of the GC-UV method

Gas chromatography - UV spectrophotometry (GC-UV) is a full scan analytical method, where the compounds eluting from a gas chromatographic column are continuously monitored. The method belongs to the same categories as gas chromatography mass spectroscopy (GC-MS) and gas chromatography Fourier transform IR (GC-FTIR).

Full scan analytical method

Comprehensive qualitative information concerning the identity and chemical class of unknowns in a sample is gained.

High sensitivity

The sensitivities are very high both concerning detection limits, identification limits and classification limits.

UV spectra capabilities

UV-spectra in the vapor phase are very well defined, which is the bases for the identification. The method is particularly suitable for the identification of structural isomers.

UV Spectrometry

Gas Chromatography – GC and GC-UV

Traditional gas chromatography is a well known and very widely used method for chemical detection and analysis installed in hundred thousands of laboratories world wide.

Basically, the heart of the chromatograph is a column, a long tube that separates the various substances by mainly due to their individual boiling points. The separation characteristics depends also upon the chemical nature of the inside surface layer of the column.

The flow of gasses can be detected by various means and a basic gas chromatograph can have various detectors to detect the variations in the out flowing gas. GC-UV is based on the UV light absorption in the gas/vapour phase as the detector. 

The wavelength range is extended down into the far-/vacuum-UV. This gives a number of advantages. By carrying out the recording in the vapour phase no spectral shifts, like in the liquid phase, are present and, there are no cut off wavelength limit due to any liquid solvent. At the short UV-wavelength range the majority of the qualitative information can be gained. Moreover, this range also most often shows the highest absorptivities (i. e. highest sensitivities) and many classes of chemical compounds, not considered as UV-absorbing, can be determined with high sensitivity.

Carl Brännhammar

Manager at Labio Scientific®

GC-UV features

From basics to advanced.
Affordable system to analyze gases and liquids.

The GC-UV is a general method of analysis and can be applied within numerous application areas. The results obtained are both qualitative and quantitative. The qualitative results give both identification of individual compounds, including isomers and chemical classification of compounds present in the sample. Classification gives comprehensive information about the chemical class as for example an aliphatic ketone or a substituted benzothiazol and so on. Quantitative determination is based on the knowledge of the light absorbing power of the compound and is often carried out using standards with known concentrations. This is the principle (Lambert Beers law) of spectrophotometry and is considered to be one of the most reliable quantification principle

1. Principles

Lambert Beers law.

2. Detection

Below 150nm.

3. Chemical classes

Selective analysis can be carried out for most of chemical classes.

4. Organic/inorganic

In addition to organic compounds also inorganic can be determined with high sensitivity.

5. Carrier gas

Nitrogen.

6. Software

DataApex Clarity PDA.

7. Instrumental construction

Relatively simple and compact.

8. Sampling

Can be customized depending on application & industry.

Short preview

Sneak peek into several publications

GC-UV has been featured as an analytical method compared to GC-MS and several other techniques. You can discover this on www.labioscientific.com or search on ResearchGate etc.

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Leasing or full purchase

Select the plan that suits you best and unlock exclusive features to accelerate your lab workflow.

Leasing

Method development and analysis

1760 +VAT per month
  • 24/7 Customer support
  • Free installation
  • Quality control inspections
GC-UV

For gases or liquids (50% downpayment)

45 000 +VAT
  • Customized solution
  • Advanced techniques
  • Interactive sampling
  • Method development
  • 30-day money-back