Agilent Technologies

Articles by Agilent Technologies

The Agilent Cary 60 UV-Vis spectrophotometer is the new, improved successor to the award-winning Cary 50 UV-Vis. In this short review, this instrument platform was evaluated for its potential to measure small (40 µL) samples of methylene blue in situ during exposure to high-intensity UV irradiation. Methylene blue is combined with other compounds used in a variety of applications, including use in cosmetics and sun screen products and environmental remediation in contaminated air and polluted water.

The increasing concern over microplastics in the environment and food chain is prompting potential regulations worldwide, impacting laboratories and producers. These entities will need to better understand the presence of microplastics in their products, with the development of standard testing methodologies underway and various challenges being encountered in their implementation.

Food manufacturers must ensure that TiO2 is within safe levels and correctly listed on a product label. However, measuring TiO2 in food products presents some challenges for the analysis via common atomic spectroscopy. Titanium dioxide may also be present in foods as nanoparticles, which requires specialized measurement techniques if the nanoparticles are to be quantified separately. Agilent is developing the measurement methodology to help manufacturers meet these new regulations.

To comply with government regulations concerning nutrition and safety, food producers commonly use atomic spectroscopy techniques such as ICP-OES & ICP-MS. In this on-demand webinar, current analytical methods are discussed, as well as necessary microwave sample preparation techniques to enhance efficiency and accuracy for the modern food lab.

With the rising consumption of protein, there has been a focus on non-animal alternatives. Six primary sources that are now available or in development for commercial use in the food chain include: animal-based proteins (ABP), plant-based proteins (PBP), fermentation-based proteins, insect-based proteins, cell culture-based proteins, and hybrid proteins. With a call for testing, Agilent has solutions for every step of the process.

With the rise of alternative sources of protein, manufacturers of protein substitutes must ensure the safety and nutritional content of their products. Therefore, measuring heavy metals and nutrient elements is an important part of any food quality system. Inductively coupled plasma mass spectrometry (ICP-MS) is the ideal technique for this application.

Inductively coupled plasma mass spectrometry (ICP-MS) has proven to be an excellent tool for measuring heavy metals and other elements of interest in alternative proteins. A recent study analyzed a range of plant-based and insect-based alternative proteins according to FDA EAM Method 4.7 on the Agilent 7850 ICP-MS with highly successful results. Strategies for achieving confidence in the data were also developed. 

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