Nucheck – Molecules

A LOOK AT NU-CHEK GLC & TLC STANDARDS

Our association with Lipid Researchers over the past three decades; during meetings, seminars and conventions, has brought about suggestions in many ways to improve product listing. One of these suggestions was that a larger listing of model mixtures that would be more representative of a specific oil would be of special interest. In this listing, we have included many new model standards along with our original series of exact weights in various percentages to assist you in GLC correlations.

If you have a special oil in mind which is not listed either as a natural oil or as a preweighed standard, please contact us.
Nu-Chek-Prep reference standards are prepared from individual chromatographically pure lipid esters. Each component used in making up our reference mixture is carefully checked by GLC using large overloads. Only those fractions which meet our rigid requirements go into the final make-up. After being weighed to the nearest tenth of a milligram, the combined material is again analyzed as a total mixture. They are then flushed with nitrogen, sealed in glass ampules under vacuum, and finally stored at -30°C. until ready for shipment.

NU-CHEK HAS BEEN PREPARING GLC AND TLC STANDARDS FOR OVER 38 YEARS. WE START BY PURIFYING EACH INDIVIDUAL FATTY ACID METHY LESTER TO >99%, THEN INCORPORATING THEM INTO OUR STANDARDS. WE HAVE OVER 130 DIFFERENT STANDARDS TO CHOOSE FROM. IF YOU STILL CAN’T FIND WHAT YOU ARE LOOKING FOR, JUST CALL, FAX OR E-MAIL. WE HAVE CUSTOM SYNTHESIS AVAILABLE AND CAN MAKE ANY CONCENTRATION OF FATTY ACIDS WHICH NU-CHEK SELLS. BELOW ARE A FEW COMMON GLC’S WHICH CAN BE USED TO IDENTIFY VARIOUS SEED OILS OR ANIMAL FAT.

CHAIN

ITEM

CODE

% BY WT.

SUITABLE OIL

Agilent, now with former Ultra Scientific, offers a comprehensive portfolio of analytical standards, reference materials and certified reference materials for environmental, food safety, elemental analysis, instrument calibration, tuning mixes, and more.

Reference materials and certified reference materials are substances that are tested to be homogenous and have fixed values of its concentrations. These standards are a critical component of your application workflow - from sample prep, instruments, columns, supplies, and services. The success of your analysis depends upon the quality of your reference material. All Agilent standard reference materials have been manufactured to the highest quality in an ISO 9001, ISO 17025 and 17034 accredited facilities to ensure the accuracy of your analyses.

If you need a custom reference material, partner with us to design and develop a custom standard to your specifications.

Agilent ULTRA Analytical Standards and Certified Reference Materials for your applications and workflows

Agilent ULTRA Analytical Standards and Certified Reference Materials for your applications and workflows

Agilent, now with former Ultra Scientific, offers a comprehensive portfolio of analytical standards, reference materials and certified reference materials for environmental, food safety, elemental analysis, instrument calibration, tuning mixes, and more.

Reference materials and certified reference materials are substances that are tested to be homogenous and have fixed values of its concentrations. These standards are a critical component of your application workflow - from sample prep, instruments, columns, supplies, and services. The success of your analysis depends upon the quality of your reference material. All Agilent standard reference materials have been manufactured to the highest quality in an ISO 9001, ISO 17025 and 17034 accredited facilities to ensure the accuracy of your analyses.

If you need a custom reference material, partner with us to design and develop a custom standard to your specifications.

The ARMAR Isotopes is a manufacturer and distributor of deuterated solvents and reagents for NMR Spectroscopy in Europe. Our products are produced in line with international quality requirements and meet the highest industrial standards. Our customers benefit from our proactive support team assisting you all the way from identifying your target substance to on-time delivery and beyond. Our customer service staff will be more than happy to help you adapt your delivery to your personal interests and needs.

ARMAR Isotopes

The ARMAR Isotopes is a manufacturer and distributor of deuterated solvents and reagents for NMR Spectroscopy in Europe. Our products are produced in line with international quality requirements and meet the highest industrial standards. Our customers benefit from our proactive support team assisting you all the way from identifying your target substance to on-time delivery and beyond. Our customer service staff will be more than happy to help you adapt your delivery to your personal interests and needs.

ARMAR Isotopes

The HPC Standards GmbH is a Manufacturer and distributor of high-purity analytical standards for residue analysis. Our ISO 9001 certified and according to ISO 17034 accredited company specializes in the manufacture of reference materials for pesticides, veterinary products as well as their metabolites and stable isotope-labelled derivatives. We are your competent partner in the fields of food- and environmental analysis. Our products are tested in line with international quality requirements and meet the highest industrial standards. Our customers benefit from our proactive support team assisting you all the way from identifying your target substance to on-time delivery and beyond. Our customer service staff will be more than happy to help you adapt your delivery to your personal interests and needs.

HPC Standards GmbH

The HPC Standards GmbH is a Manufacturer and distributor of high-purity analytical standards for residue analysis. Our ISO 9001 certified and according to ISO 17034 accredited company specializes in the manufacture of reference materials for pesticides, veterinary products as well as their metabolites and stable isotope-labelled derivatives. We are your competent partner in the fields of food- and environmental analysis. Our products are tested in line with international quality requirements and meet the highest industrial standards. Our customers benefit from our proactive support team assisting you all the way from identifying your target substance to on-time delivery and beyond. Our customer service staff will be more than happy to help you adapt your delivery to your personal interests and needs.

HPC Standards GmbH

Reagecon is a global supplier of Chemical & Physical Standards, Consumables & Equipment and Chemicals.

The company started developing Chemical & Physical Standards in 1990 and in the intervening years, has developed an offering, of more than 10,000 products, spread over 54 different product families. This makes Reagecon the largest producer in the world of Physical & Chemical Standards.

The products are sold in 175 countries worldwide. Reagecon’s new product development (NPI) program continues to flourish and our Research & Development team continue to add, in excess of 1,000 part numbers to our product offering, every year

Reagecon

Reagecon is a global supplier of Chemical & Physical Standards, Consumables & Equipment and Chemicals.

The company started developing Chemical & Physical Standards in 1990 and in the intervening years, has developed an offering, of more than 10,000 products, spread over 54 different product families. This makes Reagecon the largest producer in the world of Physical & Chemical Standards.

The products are sold in 175 countries worldwide. Reagecon’s new product development (NPI) program continues to flourish and our Research & Development team continue to add, in excess of 1,000 part numbers to our product offering, every year

Reagecon