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David Oliva

Recent Posts

How Does Nitrogen Blow Down Compare to Lyophilization?

July 15, 2024 / David Oliva

Understanding the Costs of Renting Nitrogen Gas Cylinders in Laboratories

July 09, 2024 /

Nitrogen Generators

/ David Oliva

Preparing Diverse Sample Matrices for EPA Method 1633

July 02, 2024 /

Environmental, PFAS

/ David Oliva

 Organomation blowdown evaporators are well known by those completing PFAS methods focused on drinking water, specifically EPA Method 533 and 537.1. While the N-EVAP tends to be most popular with..

How Liquid Chromatography Aided the Largest US Environmental Remediation

June 27, 2024 /

Environmental

/ David Oliva

Main Applications of Sample Concentrators & Evaporators

June 12, 2024 / David Oliva

How Gas Cylinders Can Disrupt Gas Chromatography Sample Preparation

May 30, 2024 /

Nitrogen Generators

/ David Oliva

Chromatography and Spectrometry - The Perfect Combination

May 22, 2024 / David Oliva

 Chromatography and spectrometry are often used together because they provide complementary capabilities that enhance the analysis of complex mixtures. To delve into how each contributes to the..

Limitations of the SpeedVac and Centrifugal Evaporators

 While rotary evaporators are a simple solution for concentrating one sample at a time, two types of concentrators are typically utilized for processing multiple samples at once: nitrogen blow down..

When Nitrogen Blowdown is Preferable Over Centrifugal Evaporation

 SpeedVacs, CentriVaps and other vacuum concentrators are common tools for sample evaporation. In summary, solvents are evaporated at lower temperatures due to the application of vacuum. As pressure..

The Main Culprit of Laboratory Downtime: Sample Preparation

January 11, 2024 / David Oliva

 The November 2023 edition of Lab Manager included an insightful article titled "Looking Beyond Routine Equipment Maintenance." The piece featured some thought-provoking data from a survey..