Why Use NIST standard reference material

Why Use NIST standard reference material

NSG Precision Cells is proud to be providing the scientific community with the best calibration standards in the industry. Based on the NIST standard reference material these spectrophotometer standards exceed today’s standards and are changing the was that scientist calibrate their instruments. When a scientist spends over ,000 on a spectrophotometer, it’s worth the investment of a few hundred dollars to make sure it’s calibrated correctly.

Why Is Calibrating A Spectrophotometer Important?

Info gathered from spectrophotometers demands the highest accuracy and to make sure that results are precise, a spectrophotometer need to be calibrated correctly. NSG Precision Cells has launched a new calibration item that never needs to be replaced and they are replacing the outdated liquid standards that have been used in the past.

After the first release of the nano-deposition standards in early December 2010, NSG has been seeing great feedback with regards to the accuracy and reliability of these UV/VIS calibration standards. Dr. Wang from University of California Riverside said, “I threw out all my outdated standards immediately after utilizing NSG’s calibration kit.”

The Old Fashioned Way of Calibrating A Spectrophotometer

Periodic verification of the overall performance of spectrophotometers is required by ISO 9000, GLP (Good Laboratory Practice), GMP (Good Manufacturing Practice), SOP (standard operating procedures in the pharmaceutical market), EP, DAB, USP (pharmacopeias), and other applicable standards and regulations. Most calibration equipment is calibrated according to NIST standard reference material guidelines..

Periodic verification of performance of spectrophotometers normally contains testing the resolution, wavelength accuracy, photometric accuracy and stray light have an impact on.

Traditionally, the calibration of spectrophotometers has been carried out with a blend of liquid filters and solid-state filters. The solid-state filters only authorized the checking of photometric accuracy and wavelength accuracy normally within the 450 nm – 630 nm range.

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The liquid filters enable checking the photometric accuracy, wavelength accuracy, stray light influence, and photometric resolution normally within the 200 nm – 660 nm range. These liquid filters meet NIST standard reference material guidelines, but the performance begins to degrade over time.

Liquid and solid-state filters are calibrated by the filter manufacturers, and the corresponding filters efficiency certificates are provided to clients.

Why Liquid Calibration Filters Are Being Replaced

Solid-state filters retain their performance for quite a few a long time when handled effectively.

Nonetheless the efficiency of liquid filters degrades considerably quicker due to slow irreversible chemical reactions, photonic-promoted chemical reactions, and other factors.

Thus, producers of liquid calibration standards need their consumers to substitute their liquid filters each one to 3 years. The costs and headaches of keeping track of when or if liquid standards are calibrated properly can all be avoided due to NSG’s new calibration standards.

Modern advancement of nano-engineering has permitted NSG Precision Cells to produce state-of-the art solid-state quantum resonance calibration filters. The goal of these new reference standards is to substitute the old fashioned liquid based filters, these kinds of that buyers can benefit from substantial financial savings on filter replacements and recalibrations.

Positive aspects of utilizing NSG’s Nano-Deposition calibration standards is obvious. No more having to substitute or recalibrate your standards. They are easy to handle and are really robust due to the scratch resistant coatings. They give highly precise and consistent calibration each and every time.

NSG Precision Cells Provides NIST Standard Reference Material

NSG Precision Cell’s calibration standards fit into any spectrophotometer so you don’t have to be concerned if they will do the job in your equipment. The nano-deposition standards are NIST traceable and can check and calibrate photometric accuracy, wavelength accuracy, photometric resolution and stray light affect.

Please refer to NIST calibration standards:

Photometric accuracy: SRM 930e and SRM 1930 neutral density glass filter

Wavelength accuracy: SRM 2034 Holmium oxide solution

NSG’s spectrophotometer calibration standards are calibrated according to the NIST standard reference material guidelines to ensure the highest accuracy of results.

Wavelength accuracy is accomplished by way of calibrating the peaks of various wavelengths in the UV, visible, and (exactly where relevant) IR spectra. Traditionally, the Holmium Oxide and Didymium glass filters offer weaker peaks in comparison to the holmium oxide-liquid filters. A equivalent impact can be observed with the Didymium glass filters.

NSG’s proprietary nano-deposition and nano-embedded engineering overcomes the drawbacks of utilizing solid-state filters producing them better than the existing liquid-based filters. Furthermore, the variety of peaks for calibration produced by NSG’s composite medium is quantum-harmonics’ based and for that reason, the quality of achieved calibration of spectrophotometers is assured by basic principals of physics of harmonic wavelength relations.

This method is by far superior to asymmetric wavelength peaks created by a liquid medium. The type of results that can be achieved with NSG’s standards exceeds the NIST standard reference material guidelines.

NSG Cutting Costs to Help Laboratories Save Their Budgets

Based mostly on the beneficial feedback, NSG Precision Cells says that they anticipate to see a good deal more scientists switching over to these new nano-deposition UV/VIS standards in early 2011. With the backing of the NIST standard reference material guidelines, NSG hopes to eliminate all types of old liquid standards. NSG has also reduced their pricing for these calibration kits to better suit the needs of these tough economic times.

Read more at: http://www.precisioncells.com

Source: ArticlesBase.com