Author Archives: Marcelo Luftman

Achieving Superior Raman Measurements: Understanding and Avoiding Detector Saturation

One of the primary technological advantages of Tornado Raman analyzers over conventional Raman devices is the significantly higher optical efficiency delivered by our HTVS™ platform (described in this prior blog post). With 10x to 30x more photons per second, Tornado systems provide superior spectral data for better precision and sensitivity for PAT measurements, as we […]

Optimized Perfusion by Capacitance Process Measurement & Control

Recent studies on biotherapeutic protein production have shown perfusion processes as a superior technology vs. the traditional batch and fed batch approaches. Due to its associated process stability and reducing effect of varying conditions inside the bioreactor, Perfusion can deliver lower production costs and higher titer, especially in the case of low titer or fragile […]

OD600 Measurement Results Using Spectrophotometers & Online OD Instruments

Spectrophotometers can be an excellent tools to monitor the growth phase or determine cell concentrations in microbial fermentation processes. Despite of the fact that these instruments are generally utilized to measure absorbance of particular samples (concentration measurements), spectrophotometers are also used to quantify light scattering running at 600 nm wavelength. This method, commonly known as […]

PAT Solutions Provider PROAnalytics Welcomes Brian Trippe as Senior Sales Engineer

PROAnalytics welcomes Brian Trippe

New hire’s years of technical experience help expand company’s customer base and product offerings Fairfield, NJ, Dec. 6, 2018 – Bioprocess, process analytical technology, and laboratory equipment supplier PROAnalytics, LLC is pleased to announce that Brian Trippe has joined the company as Senior Sales Engineer and Product Specialist. Brian will be responsible for developing new […]

Density Measurement: Best Operating Practices for the Laboratory

The latest advances in digital technologies allow users to perform a density measurement with a high degree of precision and great resolution. To maximize the accuracy of results, however, users may benefit by applying the best operating practices described in this article. Advantages of Digital Automatic Density Measurement Digital density meters typically use electromagnetically-induced oscillation […]

Coulometric Titration vs Volumetric Titration: Using KF titrators to determine water content

The Karl Fisher titration method was published to determine trace amount of water samples in non-aqueous systems that contained sulfur dioxide. It is currently the standard method used to calculate the moisture content in various products. When looking at titration analysis methods, it can be a challenge to determine which to use. This article takes […]

Introduction to UV/VIS Spectrophotometry: Using Spectrophotometer To Determine Concentration

Ultraviolet and visible light range (UV/VIS) is widely applied in research, production and quality control for the classification and study of substances. UV/VIS spectroscopy is based on the absorption of light by a sample. Depending on the amount of light and its wavelength absorbed by the sample, valuable information can be obtained, such as the purity […]