Mass Spectrometry Testing

Mass spectrometry uses high-energy particle beam to transform molecules into gaseous ions, and the decomposed cations are accelerated into the mass analysis instrument. The mass spectra can be obtained by recording and collecting them in the order of m/z ratio. It is one of the most powerful tools for the identification of pure substances, including determination of relative molecular weight, determination of chemical formula and structure identification. Combined with chromatograph and computer, qualitative separation and quantitative analysis can be realized. As a professional reliability third-party testing organization, T,C&A Lab's Mass Spectrometry Testing Laboratory can perform a full range of analysis services according to ISO, ASTM and other standards as well as industry requirements. Welcome to contact our experts for consultation.

Analysis and testing capabilities of mass spectrometry

• Relative molecular weight measurement

• Chemical formula determination

• Structure identification

• Quantitative analysis

Sample requirements

• The sample for GC-MS analysis should be an organic solution, and the organic matter in the aqueous solution can not be determined generally, so it must be extracted and separated into an organic solution, or the headspace injection technique should be used.

• Some compounds are too polar and easy to decompose in the heating process, such as organic acids. At this time, the acid can be esterified and then analyzed by GC-MS. The structure of the acid can be inferred from the analysis results.

• If the sample cannot be vaporized or esterified, it can only be analyzed by LC-MS.

• The best sample for LC-MS analysis is aqueous solution or methanol solution, and the LC mobile phase should not contain non-volatile salts.

• For polar samples, ESI source is generally used, and for non-polar samples, APCI source is used.

Our test cases include, but are not limited to

• Testing three eugenol anesthetics residues in culture pond water by GC - MS

• Analysis of indoxacarb enantionmers in tea by UPLC - MS/MS

• Testing 9,10-anthraquinone in instant tea powder by GC - MS

Standards we test to

• ASTM D7968, ASTM D7730, ASTM D7731, ASTM D8110, ASTM D7742, ASTM E2838, ASTM E2823, ASTM E2330-19, ASTM E2787, ASTM D8026

• ISO 10638, ISO 17294, ISO 18856, ISO/TS 16965, ISO 17734, ISO 17734, ISO 21863, ISO 20647, ISO 16000, ISO 17858, ISO 20636

In addition, the experts in our Mass Spectrometry Testing Laboratory also provide a variety of custom services as your needs and requirements. Let's discuss the custom services with our experts for free.

Instruments and data

Note: this service is for Research Use Only and Not intended for clinical use.

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