Dirk Lachenmeier, Marina Gary, Yulia Monakhova, Thomas Kuballa and Gerd Mildau describe “Rapid NMR screening of total aldehydes to detect oxidative rancidity in vegetable oils and decorative cosmetics”. Lipid oxidation produces rancid products, which are both unpleasant and potentially toxic. The authors describe the use of NMR to screen food and cosmetic products. Whilst, vegetable oils were generally found to be in good condition, German women may wish to be careful of their lipstick, especially if they have had kept it for a while!
Roumiana Tsenkova introduces us to the field of “Aquaphotomics” which she has pioneered. The potential information held by water in biological systems coupled with NIR spectroscopy’s ability to extract a large amount of information at once, means that Aquaphotomics may be of great importance in the study of living organisms.
The counterfeiting of medicines is an increasing world wide problem as a great danger to public health. Counterfeit medicines are imitations of their authentic counterparts so that both physical characterisation and chemical analysis are required to discriminate between them. In this respect, near infrared (NIR) spectroscopy is ideally suited to screening for counterfeit medicines because it is non-destructive, fast, requires no sample preparation, and provides a fingerprint of the physical and chemical composition of a product.
Information on the detailed chemical composition, structure and morphology of environmental particles, and especially airborne particulate matter (PM), facilitate the understanding of their reactivity, sources, transport and changes of chemical species and, hence, prediction of their likely impact on the environment and human and animal health. The analysis techniques for environmental particles can broadly be divided into two groups: bulk (for example, water-soluble ionic content by means of ion chromatography for PM, elemental concentrations by means of X-ray fluorescence spectrometry for all environmental particles, chemical structural information by means of X-ray diffraction for larger environmental particles, such as sediments and sands etc.) and micro-analytical techniques, whereby the character of any single particle can be probed.
The presence of trace elements in gasoline can lead to a number of detrimental effects both on the automobile engine using the fuel as well as the environment. Trace elements can dramatically decrease engine performance by negatively impacting the operation of the engine’s electronic sensors that control the combustion process. Additionally, environmental pollution occurs when trace elements are transported from the engine to the environment via emissions. The analysis of these elements is therefore crucial to ensure that the performance of the engine is not affected by the fuel and that environmental damage does not occur when trace elements are released from the engine via emissions. This article discusses how modern inductively-coupled plasma (ICP) technology surpasses the performance of traditionally used atomic absorption spectroscopy (AAS) techniques to ensure optimal fuel quality.
- The delicacy and beauty of two great rivers
- Selected ion flow tube mass spectrometry, SIFT-MS; new horizons in real time air and breath analysis
- Revealing the presence of creatine in human spinal cord in amyotrophic lateral sclerosis, by infrared microspectroscopy
- Laser ablation ICP atomic emission spectrometry—a new tool for imaging of pharmaceutical tablets
Page 7 of 21
Free print subscription
View this Free Webinar
Gujarathi Dipak B. saidSir,
This is an excellent appl... 1 year ago
Rakesh Kanda saidDr Alfonso,
Matrix suppression is ... 2 years ago
Dr Robson JCF Afonso saidDear Authors,
As you sad atmospheric... 2 years ago
email@example.com saidNice article.
Based on this article ... 2 years ago
Dr Robson JCF Afonso saidI am glad to hearing someone question... 2 years ago
- Atomic absorption
- Atomic emission
- Ion mobility
- Laser spectroscopy
- Mass spectrometry
- Near infrared
- NMR ESR EPR
- Related equipment
- RMs and standards
- Sample prep
- Separation science
- Surface analysis
- X-ray spectrometry