Solid Phase Microextraction (SPME) is a sample preparation technique used in analytical chemistry and biochemistry to extract and concentrate analytes from a sample matrix. It involves the use of a small fiber coated with a sorbent material, which is inserted into the sample solution or headspace above the sample. The analytes are absorbed onto the sorbent material on the fiber, and then desorbed into a solvent or directly injected into an analytical instrument for analysis. SPME is especially useful for the analysis of volatile and semi-volatile compounds in a wide range of sample matrices, including environmental, food, and biological samples. Some of the benefits of SPME include its simplicity, speed, and low cost, as well as its ability to reduce sample preparation time and minimize the use of solvents and other hazardous chemicals. SPME is widely used in the fields of forensic science, environmental monitoring, food analysis, and drug development, among others.
Solid Phase Microextraction (SPME) fibers are small, thin, and flexible fibers that are coated with a sorbent material for use in extracting and concentrating analytes from a sample matrix. The fibers are typically made of fused silica or other inert materials, and are coated with a variety of sorbent materials such as polydimethylsiloxane (PDMS), divinylbenzene-carboxen-polydimethylsiloxane (DVB-CAR-PDMS), and other materials. The choice of sorbent material depends on the nature of the analytes being extracted and the sample matrix. SPME fibers are available in a range of sizes and shapes, and can be used in a variety of applications, including the analysis of volatile and semi-volatile compounds in environmental, food, and biological samples. The fibers can be used in direct immersion mode for liquid samples, or in headspace mode for analysis of volatile compounds in gas samples. After sampling, the fibers can be thermally desorbed to release the analytes into a solvent or directly injected into an analytical instrument for analysis. SPME fibers are widely used in analytical chemistry and biochemistry, and have become an important tool for sample preparation and analysis in a variety of fields. To ensure accurate and reliable testing results to meet your analytical needs, ALL Chemistry Inc. offers custom SPME fiber configurations.
Our services involve the production of custom SPME fibers coated with a specific sorbent material for a particular application. These customizations include:
the sorbent material
the size and shape
needle gauge and length
the quality control testing parameters
the holder type
ALL Chemistry Inc. provides custom SPME fibers services which can be tailored to meet the specific needs of a research project or application. The use of custom SPME fibers can improve the accuracy, sensitivity, and selectivity of the analysis, leading to better results and more efficient sample preparation.
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