ChemServe DNPH Analytical Standards & Testing

WHAT IS 2,4 DINITROPHENYLHYDRAZINE (DNPH)?

2,4-Dinitrophenylhydrazine or DNPH is a reagent used in organic analysis and detection of ketones and aldehydes. This compound contains a benzene ring, two nitro groups, and a hydrazine functional group that is dissolved in a solution of methanol and some concentrated sulfuric acid. It is a successful test when determining the presence of aldehydes and […]

DNHP Testing for Aldehydes and Ketones

2,4 DINITROPHENYLHYDRAZINE TEST FOR ALDEHYDES AND KETONES

Why Test for Ketones? In recent years, ketosis has become a familiar term due to the low carb Ketogenic diet, but ketones have been known by healthcare professionals and those with diabetes well before this diet was widely recognized. Ketones are water-soluble molecules produced by the liver and formed by fatty acids when the body […]

The recent change to gasoline blends may change testing of VOC in underground storage tanks

US Change To Testing Gasoline Blends No Longer Tests For Aromatics

In October 2020, the United States Environmental Protection Agency (EPA) reformulated and streamlined gasoline testing blends to no longer require gasoline producers to meet a set of standards known as “Volatile Organic Compound (VOC) – controlled RBOB”, which includes aromatics. Testing cut eleven parameters, that were previously evaluated utilizing the Complex Model by the EPA, […]

Testing Cannabis

The Importance of Testing Cannabis

Cannabis can have many benefits and as it becomes more legalized across the United States the industry is starting to be held to quality control standards. Like any growing industry though, there is still a lot of room for growth regarding safety and testing. For example, if medical cannabis was put into the same bucket […]

New EU Regulations on climbazole in shampoos and skin creams go into effect

What is Climbazole and Why Should we be Testing for it?

What is Climbazole and How is it Used in Cosmetic Products? Climbazole is an additive and antifungal agent used in over-the-counter shampoos, conditioners, lotions, and face washes to treat human fungal skin infections like eczema and dandruff. Dandruff is suffered by as much as half of the population and about one in every ten individuals […]

Lanolin is a moisturizing product

What is Lanolin? How To Test for Pesticides in Lanolin

What is Lanolin and Where is it Extracted? The history of lanolin dates back thousands of years to the ancient Greeks who first discovered that the water used to wash wool contained a valuable oil-like substance, called lanolin. This oil is derived from sheep’s skin that it meant to condition and guard their wool from […]

Testing for EPA 524.2

What are Volatile Organic Compounds (VOC’s) in Drinking Water?

Volatile Organic Compounds (1), known as VOCs, are a class of organic chemicals that evaporate into water or vaporize easily into normal air temperatures. Thousands of these carbon-containing chemicals have been manufactured for commercial, industrial, and residential use and can have a variety of harmful health and environmental effects. When VOCs are found in drinking […]

fungicides

Fungicide Uses and Risks

Introduction to the Uses and Risks of Fungicide Fungicides are the first step to prevent and control fungal disease. Fungicides are applied to seeds and plants as a preventative measure to stop and kill fungus before it can infect plants and spread to an entire crop or lawn. While a fungicide is not a cure-all, […]