Applicaties

Animal feed

Fat content is an important nutritional and quality control parameter in the manufacture of animal feed, therefore a fast and reliable measurement is required for process optimisation. Low resolution Nuclear Magnetic Resonance (NMR) can determine fat content of
animal feed in the presence of 9-14% moisture without pre-drying, in contrast to most other samples, particularly seeds, which must be < 10%.

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Snack food

Measuring the oil content of dried snack foods is essential for quality control to ensure that the products meet their nutritional values. The amount of oil used is also important in terms of the significant cost of the raw material and the effect it may have on the texture and perceived quality of the product.

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Oil in seeds

Accurate and fast determination of oil content is important to breeders, growers and buyers for determining the commercial value of oil-bearing crops such as rape (canola), sunflower, linseed, soya bean and groundnut. Nuclear Magnetic Resonance (NMR) offers a clean, rapid and accurate alternative to traditional wet chemical techniques and is easier to calibrate than Near Infra-Red (NIR).

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Fish feed

Fish feed manufacturers produce pellets that vary in size, oil content (from 5 to 40%) and moisture (usually less than 10%). Measuring the oil and moisture content is essential for quality control to ensure that the products meet their nutritional values. The amount of oil used is particularly important in terms of the significant cost of the raw material and the affect it may have on the texture and perceived quality of the product. Low resolution Nuclear Magnetic Resonance (NMR) provides a method which is quick and easy to perform, simple to calibrate, and not dependent on the sample matrix.

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Toothpaste

Modern toothpastes are designed to do more than just clean teeth. Hence they contain many additives, either for health or cosmetic reasons, including components to prevent tooth decay, colourants, flavours, and preservatives. Fluoride is an important component of
toothpaste as it protects the tooth by making the enamel harder. However, toothpastes are classified as drugs, not cosmetics, therefore the level of fluoride must be carefully controlled and measured accurately.

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Spin finish

Modern toothpastes are designed to do more than just clean teeth. Hence they contain many additives, either for health or cosmetic reasons, including components to prevent tooth decay, colourants, flavours, and preservatives. Fluoride is an important component of
toothpaste as it protects the tooth by making the enamel harder. However, toothpastes are classified as drugs, not cosmetics, therefore the level of fluoride must be carefully controlled and measured accurately.

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Fluoride

In the production of artificial fibres such as polyamide and polyester, the fibres are sprayed with an oil-based coating to reduce static electricity and friction as well as enhance certain physical characteristics. This coating is variously known in different countries as spin finish, oil pick-up (OPU) and finish on yarn (FOY). Measurement of the applied spin finish using the MQC analyser is fast, simple and
solvent free. Like its predecessor the MQA, the MQC supports a non-weighing method which allows even faster measurements. The fast, precise results obtainable with the MQC  allow tighter control of the manufacturing process which translates, in real terms, to fewer
out of specification products and lower production costs due to less finish material being used.

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Jatropha

Measuring the oil content of Jatropha seeds is important for two reasons: firstly, for non-destructive measurement of single seeds, to select high oil content specimens for propagation, secondly, for bulk measurement of oil content for trading or processing.

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Oil in polystyrene

Mineral Oil is added to Crystal Polystyrene to increase its flexibility. This process requires a high degree of regulation, as the addition of too much mineral oil would dissolve the polystyrene polymer. NMR can provide a rapid and effective means of monitoring the mineral oil content in crystal polystyrene.

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Chocolate

Cocoa beans are processed to extract cocoa liquor or cocoa butter, a major ingredient of dark and milk chocolate. Cocoa beans are roasted, separated from their shell and cracked into nib. Nib is then ground to produce cocoa liquor or cocoa butter plus cocoa powder. As the quality of the beans can vary depending on the environmental conditions in the region where they were grown, it is important to
quantify the fat content of the raw and intermediate materials to ensure consistency of the final product.

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Hydrogen in fuel

The hydrogen content of aviation fuel is an important parameter as it determines the combustion properties of the fuel. Traditional  methods such as smoke point, smoke volatility index and luminometer number are tedious, time-consuming and usually require skilled analysts. Nuclear Magnetic Resonance (NMR) offers the opportunity to monitor the hydrogen content of fuels rapidly, non-destructively and with minimal sample preparation.

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Oil in wax

Although wax was originally treated as a waste product by the oil refining industry, it is now widely used in manufacturing because of its specific mechanical and physical properties (flexibility, friction index, hardness coefficient, melting point etc.). The oil refining industry has responded by producing different types of wax with special characteristics (petrolatum, slack, crude paraffin, recrystallised paraffin, blend etc.). As oil content is one significant parameter in the composition of wax that affects its physical properties, it needs to be measured routinely.

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Determination of solid fat

The measurement of Solid Fat Content (SFC) in edible oils and fats is an essential measurement in the bakery, confectionery and margarine industries. It is important that raw materials are characterised according to their melting profile, and rapid and convenient methods are required for doing this. The traditional method for measuring SFC has been dilatometry, but this is now regarded as slow, inaccurate and cumbersome. For a number of years, Nuclear Magnetic Resonance (NMR) has been the method of choice for determination of SFC.

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Lotion on fabric

The NMR is a non-destructive, quality control method to help the customer control the level of emulsion applied to the fabric. Several manufacturers apply oil and wax emulsions onto natural or synthetic staples to enhance their absorbance and strength. Products like toilette paper, disposable napkins and mops use these add-ons to improve their quality. The advantage of the NMR is that it a  non-destructive analytical method.  Therefore you can generate precise values from the same sample without any additional handling, chemicals or additional sample waste.

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