Minispec mq-one Series TD-NMR Analyzer

Building on the results from prior experimentation, this application note presents a full set of 1H-detected experiments that allows for an accelerated resonance assignment of a protein’s backbone and side chains.

This application note presents a TD-NMR method for the fast analysis of xylene soluble content in polypropylene. The method is operator independent and requires no harmful solvents or dedicated lab-space.

Water-in-oil (W/O) and oil-in-water (O/W) emulsions are found in everyday meals, mainly as margarine, low fat spread, and butter (W/O) or, as mayonnaise, salad dressing, and soft cheese (O/W). The droplet size distribution in these emulsions influences their taste, smell, and appearance, as well as their shelf life and spread behavior. Bruker’s minispec allows a fast, non-invasive, and accurate analysis of the droplet size distribution in these products. It is based on a Time Domain (TD) NMR technique which is equally applicable to free and to flocculated droplets. Moreover, it has the ability to assess individual droplet sizes rather than cluster sizes.

The crystallinity of polyethylene (PE) determines the stiffness, the impact and tensile strength, the permeability and the resistance of the material. Therefore, its measurement is of paramount importance regarding the specifications of a PE grade. Bruker’s PE crystallinity application provides this information fast, with high precision and repeatability. Other commonly employed methods such as Differential Scanning Calorimetry (DSC) or density determination by displacement are significantly slower and require tedious sample preparation. The analysis can be carried out at line by untrained personnel requiring no dedicated lab environment.

This application note demonstrates the capabilities of multiphase NMR in providing molecular analyses of complex heterogeneous samples. Typical analytical approaches to environmental research rely on sample processing, such as extractions that provide only a selective window into the true natural state. The integration of concepts from different fields of NMR spectroscopy enables us to produce a novel comprehensive approach that can be used to study and differentiate between the various phases in a heterogeneous sample as well as identify the key structures and their molecular interactions within each phase.

Bruker’s versatile TD-NMR applications are widely used in the study of polymerization reaction kinetics, material properties of filled and modified polymers and failure analysis. Discover the range of applications supported by Bruker’s minispec systems and key advantages compared to optical methods.

For certain applications, it is important that the textiles are free of Spin Finish. Especially for bulletproof vests, Spin Finish has to be washed off completely. If Spin Finish is not fully removed, the bullet would slide through the vest despite the set-up of several overlaid textile layers. Learn how the minispec is able to detect Spin Finish down to very low concentrations.

For special fiber applications, an elastomer coating, so-called dip, is necessary to improve the fiber’s properties such as wind stopping, water repellent, and reinforcement. Such additional properties also qualify the fibers for technical use, for example, for clothing and for rubber products like car tires or conveyor belts. Learn how, using the minispec, the dip amount on fibers can be quickly and accurately analyzed in a one-step measurement.

Fiber manufacturing often uses a thin layer of finish to assist the fiber’s performance and its ability to run in downstream spinning processes. This application note presents a TD-NMR method for the application of spin finish on fibers oil pick up without sample weighing, in which both FID and Hahn echo are recorded.

Determining the Spin Finish levels is crucial and needs to be assessed quickly and continuously. The minispec has proven to be the best solution for analyzing practically all combinations of fibers and Spin Finishes. This application note describes a time-domain (TD) NMR method for the analysis of spin finish on fibers with sample weighing.

Learn about the minispec Solid Fat Content Analyzer, and how it can be used for methods AOCS, ISO and IUPAC methods. For a combination of SFC analysis with further applications like Total Fat Content or determination of droplet size distributions mq series products are offered.

Analytik has launched a range of benchtop time-domain nuclear magnetic resonance (TD-NMR) systems

Reaction monitoring in the pharmaceutical industry and industrial polymer quality control