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Gas Chromatography
Gas Chromatography (“GC”) is an analytical technique used for separating liquids or gases via a capillary column, using gas as the solvent medium.
This technique is used to characterize, identify, and quantitate volatile and semi-volatile components in various sample matrices. Contaminants can be determined from the percent level to part per billion (“PPB”) depending on the analyte being detected.
While the GC is a temperature controlled oven, it is the detector to which it is coupled that determines what can be seen. At Impact Analytical, our scientists can use detectors such as:
- Flame Ionization Detection (FID)
- Thermal Conductivity Detection (TCD)
- Electron Capture Ionization (ECI)
- Mass Spectrometer (MS)
- Odor Analysis
By utilizing both purchased (NIST) and in-house spectral databases the scientists are able to identify unknowns.
The GC’s at Impact Analytical are qualified for testing under cGMP or GLP (FDA, EPA) guidelines.
Case Studies
Industry: Medical Device
Problem: Residual Solvents per USP method <467>
Solution: Modified <467> – read full case study
Problem: Residual Solvents per USP method <467>
Solution: Modified <467> – read full case study
Industry: Consumer Products & Plastics
Problem: Consumer product supplier needed to determine if Bisphenol-A (BPA) was present in their final products: polymer containers, lids, and storage bags.
Solution: BPA Testing – read full case study
Problem: Consumer product supplier needed to determine if Bisphenol-A (BPA) was present in their final products: polymer containers, lids, and storage bags.
Solution: BPA Testing – read full case study
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