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The wide variety of Starna® products produced by the Starna Group are manufactured at the Starna Scientific (Formerly Optiglass) factory founded in 1964, whose lineage of optical expertise is traceable to the early part of the last century. Starna Scientific Limited is a wholly owned subsidiary of more
FLUXANA® - XRF Application Solutions Our clients are X-ray fluorescence (XRF) users. This spectroscopic method is employed for elemental analysis as it enables determination of the inorganic components in a substance/product. The method is applied throughout the entire quality assurance industry as more
As an international leading manufacturer of analytical instrumentation with more than 30 years of experience HANNA instruments offers modern solutions for laboratories, the environmental sector and the industrial process. more
Verify your Spectrophotometer using Starna Certified Reference Materials – trusted by end-users worldwide for their excellent quality and reliability more
Ensure conformity with regulations (Ph. Eur., USP) and provide for highest process transparency with reference materials for UV/Vis spectroscopy. more
Starna Scientific offers the world's widest range of Certified Reference Materials for the entire wavelength range from deep UV to NIR (190 - 2850 nm) more
A high-tech version of an old-fashioned balance scale at the National Institute of Standards and Technology (NIST) has just brought scientists a critical step closer toward a new and improved definition of the kilogram. The scale, called the NIST-4 watt balance, has conducted its first measurement o more
The National Institute of Standards and Technology (NIST) has issued a new ruler. Designed to be the most accurate commercially available "meter stick" for the nano world, the new measuring tool — a calibration standard for X-ray diffraction — boasts uncertainties below a femtometer. That's roughly more
SCP SCIENCE has reached an agreement to purchase Conostan, an oil-based standards manufacturing division of ConocoPhillips. Located in Ponca City, Okla., Conostan is a manufacturer and supplier of oil-based analytical standards used for calibration or verification of instruments for analysis of orga more
Regular testing of spectrophotometers with certified reference materials secures the traceability of measuring results to international standards (e.g. NIST, ASTM). Hellma reference materials for UV/Vis spectroscopy ensure conformity with regulations (Ph. Eur., USP) and provide for highest process t more
Abstract RATIONALE The monomer 1‐vinyl‐2‐pyrrolidone (VP) is a substance with excellent solvent features. It is used in a wide variety of pharmaceutical, cosmetic, food industrial or technical applications and produced in industrial scale. Since VP has caused adenocarcinoma of the nasal cavity more
Highly homogeneous multi-element gelatin calibration standards were fabricated for quantitative LA-ICP-MS bioimaging. Heterogeneity issues caused by the so-called “coffee-stain” and/or “Marangoni” effects were found to be element-dependent but could be circumvented by careful selection of drying/set more
IJMS, Vol. 18, Pages 1800: Determination of Sphingosine-1-Phosphate in Human Plasma Using Liquid Chromatography Coupled with Q-Tof Mass Spectrometry International Journal of Molecular Sciences doi: 10.3390/ijms18081800 Authors: Emmanuel Eroume-A Egom Ross Fitzgerald Rebecca Canning Re more
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