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Molecular spectroscopy: UV/VIS, IR, NMR

Molecular spectroscopy comprises methods that look at the interaction of molecules with electromagnetic radiation. This results in statements about the structure of molecules and the presence of functional groups, but also, for example, about the quantity of substances in mixtures or pure substances. In addition to standard methods such as UV-VIS spectroscopy and infrared spectroscopy, we also offer nuclear magnetic resonance spectroscopy (NMR).

 

Outsourcing of NMR analytics

NMR analysis is used to obtain precise data for quality control, REACH registration and research & development processes. 

Our state-of-the-art laboratory in Hürth meets the demand from the chemical industry for fast and precise data related to the development and production of chemicals and agrochemicals. 

Our highly qualified team of experts is your valuable partner for outsourcing samples for NMR spectroscopy. Our scientists are available to provide you with advice and support on standards, working techniques and technologies used.

Our goal is to help you make your products and processes better and safer.

For our customers, analysis by NMR is one of the most important services we offer. NMR spectrometers are ideal for identifying or confirming the molecular structure of substances, for quantitative measurement of major and minor components, and in special cases for detecting impurities.

In principle, NMR is a non-invasive, non-destructive analytical technique. Valuable sample material can be recovered by evaporation of the solvent.

The method is based on the physical effect of nuclear magnetic resonance, i.e. the interaction of nuclei with electromagnetic waves in a strong magnetic field. The result is a spectrum of different signals relating to the functional groups of the molecules.

This information can be used to draw conclusions about the molecular structure. In addition, the identified substance can also be quantified using an internal standard.

The results of NMR spectroscopy can be made available very quickly. Express analyses within 24 hours are possible on request.

NMR services and applications

1. quality control of chemical products, intermediates or raw materials:

NMR spectroscopy is a very effective and fast method to control the purity, identity and quantity of soluble chemical substances.

2. quantification of standards for instrumental chemistry (i.e. standards for chromatography):

NMR can be applied to all active NMR nuclei, such as 1H, 29Si 31P or 13C. The advantages over chromatographic methods are particularly evident in the validation and quantification of standards and reference substances. The method is very precise and sensitive.

3. structure elucidation of chemical substances:

Structure elucidation is often performed by a combination of different analytical methods such as spectroscopy (NMR, GC-MS, FT-IR) or chromatography. Beyond NMR spectroscopy, our customers benefit from our broad spectrum of analytical methods and expertise in substance identification, which is particularly important in REACH registration processes.

4. comparison of chemical substances:

REACH seed analysis requires confirmation of substance identity and composition. This is mainly realized by NMR spectroscopy and chromatography.

5. control of chemical reactions, analysis of side effects and impurities:

NMR spectroscopy is very suitable for process control. Due to its high selectivity and sensitivity, it provides accurate data without the need to separate or derivatize chemical compounds.

About our specialty laboratory

Our team of experts at SGS Chemical, Industrial and Specialty Analytics can support you with the data you need to overcome challenges and help you find the best possible solution for your process.

For the chemical and manufacturing industries, it is essential to maintain the quality of existing products and develop new ones. This means

  • the selection of suitable raw materials,
  • the optimization of chemical reactions and production processes or
  • the development of new production methods
  • are daily core tasks.

The basis for scientific and technological developments are analytical methods. This also applies to unexpected events such as unidentified precipitates in reactors, impurities in products or customer complaints.

Accreditation

Our laboratory is accredited according to DIN EN ISO/IEC 17025 and regularly participates successfully in interlaboratory tests. 

Contact

Contact us
SGS Chemie-, Industrie- und Spezialanalytik GmbH

Industriestr. 300
D-50354 Hürth