2014 Gas Chromatography Product Survey Results

Gas chromatography (GC) is a common technique used in analytical chemistry for separating and analyzing compounds that can be vaporized without decomposition. GC is typically used for separating the different components of a mixture, improving the purity of a particular substance, or identifying a particular compound. GC is a ubiquitous technique, and the various GC instruments available are designed to achieve every requirement of the technique.

By Trevor Henderson

Top 6 Questions You Should Ask When Buying a GC System

  1. What factors come into play when determining the GC system specifications you require in terms of cycle time, enhanced operator benefits, increased productivity and flexibility for specific applications?
  2. What differentiates the vendor’s GC system from others offered, in terms of performance?
  3. How do you validate the specification claims presented by the vendor?
  4. Has the data processing software been designed for enhanced analytics, with workflow in mind and does it support critical compliance requirements?
  5. What are important price points to keep in mind when selecting a GC system?
  6. Laboratories need fast and effective services, including an effective distribution of instruments, spare parts, education, and service personnel. How does the company serve these needs worldwide?

Types of GC detectors used by survey respondents:

Flame ionization (FID) 32%
Thermal conductivity (TCD) 14%
Electron capture (ECD) 15%
Nitrogen-phosphorus 4%
Flame photometric (FPD) 5%
Photo-ionization (PID) 3%
Hall electrolytic conductivity 1%
Mass spectrometer 24%
Don't know 1%
Other 1%

GC-related components used by survey respondents:

Autosampler 24%
Data system 24%
Purge & trap 11%
Gas generator 9%
Headspace sampler 11%
Regulators, valves, fittings 21%

Nearly 44% of respondents plan on purchasing a GC system in the next year. The reasons for these purchases are as follows: 

Addition to existing systems, increase capacity  
Upgrading existing GC-MS system
Require more sensitivity
Require shorter run times/increased lab throughput
Setting up a new lab
Require higher quality data
Trying to reduce operating costs
Require greater mass stability
Require Retention-Time Locking (RLT) ready

Top 10 features/factors respondents look for when purchasing a GC system:

Accuracy 92%
Quality of data 88%
Sensitivity 84%
Ruggedness and reliability 76%
Resolution 74%
Availability of supplies and accessories 68%
Precise and accurate flow rates 67%
Price 66%
Service and support 65%
Warranties 64%

Completed Surveys: 260

For more information on GC systems, including useful articles and a list of manufacturers, visit www.labmanager.com/GC 

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Categories: Surveys

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