Gas Chromatography Service
Our gas chromatography specialists can offer a wide range of expert gas chromatography (GC) services, including unknown solvent screening and residual solvent analysis including UPS <467> RESIDUAL SOLVENTS. Headspace sampling options are also available.
Please complete our GC-MS/GC-FID Request Form to request your gas chromatography analysis today.
We have extensive experience using flame ionization detection (FID), the most widely used detector in gas chromatography. FID offers sensitivity to a varying range of organic components, and operates over an extremely wide range of concentrations.
USP <467> Residual Solvents
We determine residual solvent levels according to USP <467>. Our experts can determine the three established classes of residual solvents based on risk assessment or their potential toxicity level, providing an accurate analysis of the amount of each residual solvent.
Our gas chromatography-mass spectrometry (GC-MS) experts separate volatile and semi-volatile compounds in complex samples. GC-MS is an ideal method for qualitatively and quantitatively evaluating multi-component samples. It offers excellent linearity as well as an even lower limit of quantitation than GC-FID.
Unknown Scans by GC-MS
GC-MS may be used to identify unknown components in a compound. At RML, our scientists can compare each component observed in the gas chromatogram against a mass spectral database for identification.
Headspace Analysis for GC
Headspace sampling in gas chromatography is used to determine volatile components in gaseous equilibrium with a solid component or matrix. This technique is highly useful for analyzing residual solvents in pharmaceutical products, as well as for industrial analyses of monomers in polymers and plastic, flavor compounds in beverages and food products, and fragrances in perfumes and cosmetics, and is available for both GC-FID and GC-MS analyses.
Ion Chromatography Lab
Our ion chromatography (IC) experts are adept at determining ppm or percent levels of organic and inorganic ions.
Our unique proprietary techniques, along with our state-of-the-art instrumentation, enable our experts to analyze ion concentrations without potential chemical interferences normally associated with titrimetric and photometric assays.
Ion Chromatography Testing
Robertson Microlit Laboratories offers ion chromatographic analyses for both anionic and cationic species.
Our ion chromatography capability ensures exceptional control and reproducibility for both isocratic and gradient separations, and provides fast, sensitive separations without sacrificing resolution. Whether using our general in-house method, or implementing customer-supplied methods and procedures, we have the capability to achieve your most demanding analytical objectives.
Please use our RML Analysis Request Form to request your ion chromatography analysis today.
Our HPLC experts utilize high performance liquid chromatography to separate components of a sample, such as impurities or degradation products.
Since HPLC provides reliable quantitative analyses of a main component and its related substances or impurities in a single run, it remains a popular analytical technique among our clients in the pharmaceutical, food, nutritional supplements, and chemical industries.
HPLC Lab at Robertson Microlit
Our HPLC capability includes normal and reverse phase isocratic or gradient methods utilizing multi-wavelength UV/Vis spectrophotometric or full diode array detection (DAD). RML offers the flexibility of running established compendial or monograph methods, implementing client-provided methods, or developing new HPLC analyses to meet your needs.
Please use our HPLC Analysis Request Form to request your HPLC analysis today.