Product category:
Materials Testing
News Release from: Metrohm UK | Subject: Monographs, Application Bulletins and Notes
Edited by the Manufacturingtalk Editorial
Team on 08 August 2006
Reliable analysis of fruits and
vegetables
Due to its high sensitivity, voltammetry and polarography are the first choice in trace metal analysis.
In nutrition, synergetic effects play an important role A minimal amount of 400 g of fruits and vegetables per day (starch containing tubes excluded) is a natural source of valuable fibers, vegetable proteins and protective micronutrients Therefore, the consumption of fruits and vegetables can help to prevent us from major diseases (cardiovascular diseases) and certain cancers
This article was originally published on Manufacturingtalk on 22 May 2008 at 8.00am (UK)
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The kind of minerals and ions present in a fruit or vegetable also depend on the soil the plant is growing on.
Besides the natural minerals, fruit and vegetables can also contain highly toxic heavy metals as lead or mercury.
It's a matter of concentration, whether a metal is toxic or not: On one hand our body absolutely needs zinc as an essential trace element.
On the other hand zinc being present in too high levels will interfere with the metabolism of other minerals in the body (iron and copper) and is under this circumstances toxic.
An important role also plays storage and conservation of fruits and vegetables which are also possible sources for contamination as in case of using tin plate for cans.
The vitamin C concentration in fruit as well as a huge number of anions and cations present in fruit can be determined by ion chromatography, titration or voltammetry / polarography.
Due to its high sensitivity, voltammetry and polarography are the first choice in trace metal analysis.
Titration on the other hand provides an easy and cheap way to analyze major minerals in fruits and vegetables.
When it comes to nitrate analysis or the analysis of different ions concomitantly, then ion chromatography plays its trump.
Metrohm can offer you all these different analysis techniques.
From Metrohm you get more than reliable and innovative laboratory equipment with outstanding performance.
You can also profit from our fundamental experience and knowledge.
Our free Monographs, Application Bulletins and Notes will be a great benefit for your analysis of fruits and vegetables. Request a free brochure from Metrohm UK ...
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