Product category:
Food Processing News
News Release from: Metrohm UK | Subject: Salt Analyser
Edited by the Processingtalk Editorial
Team on 04 February 2008
The new salt analyser from Metrohm UK
This simple, easy to use instrument will guarantee fast, accurate and reliable results in the measurement of salt concentrations in foodstuffs
Salt (sodium chloride) is an essential ingredient in practically all food for human consumption and, apart from its nutritional and physiological importance, above all, gives the food in question its pleasant taste It is generally known that the salt content in a foodstuff with a certain flavour cannot be reduced beyond a certain extent without losing the characteristic taste and the food being rejected as tasteless
This article was originally published on Processingtalk on 2 Jul 2008 at 8.00am (UK)
Related stories
Tighter process control in acid pickling baths
Online ion chromatography from Metrohm has enabled tighter process control of acid pickling baths, as the final cleaning stage prior to metal plating
The determination of acidity in soft drinks
Sparkling drinks are the main cause of increasing tooth erosion among teenagers: a study in the British Dental Journal found a strong link between fizzy drink consumption and tooth erosion
The regular daily diet of a human being contains approximately 3 to 5 grams salt.
This amount is adequate to maintain good health and the physiological activities of the human body.
Depending on eating habits, salt consumption is, however, often in excess of 10 grams per day.
On the other hand, it is known that excessive salt consumption through food intake can have extremely detrimental effects on the human circulatory system, resulting, above all, in high blood pressure and kidney effects.
There is, therefore, an urgent need for a reduction in human salt consumption, not only to cure existing illnesses with a low-salt food diet but also to take preventive measures in healthy human beings.
The content of chloride (salt) in food stuffs is determined by titration using the electrode Ag Titrode with an Ag2S coating.
The analysis is a so called precipitation titration with potentiometric detection.
The chloride ions in the sample solution are titrated with a silver nitrate solution (titrant), leading to precipitation of silver chloride due to its low solubility product.
As soon as there are no more chloride ions present in the sample solution, adding more titrant results in free silver ions and hence a rapid change in the measured potential at the Ag-Titrode.
The amount of salt in the foodstuff is determined from the first endpoint of the titration curve.
The Salt Titrino offers you a complete working package, which includes titrator, electrode, stirrer and burette.
The parameters of each instrument have been optimised to ensure fast, accurate and reproducible results.....with the minimum of fuss.
Virtually all the keys are locked out to stop any unwanted changes to parameters and results.
These instruments are ideal for process laboratories, and also when this type of analysis is performed by unskilled operators, for example. Request a free brochure from Metrohm UK ...
• Metrohm UK: contact details and other news
• Email this article to a colleague
• Register for the free Processingtalk email newsletter
• Processingtalk Home Page
Search the Pro-Talk network of sites
