January 2005Analytical Instrumentation & Environmental Monitoring
There is no glass formulation currently available that has zero sodium ion error (alkaline error). Since there will be some error, it is important that the error be constant and reproducible. With many glass formulations this is not possible, because the electrode becomes sensitised to the environment that it was in prior to the high pH. For example, the exact start point of an electrode's sodium ion error might be 11,5 pH after immersion in tap water (+8 pH) but 12,5 pH after being in an alkaline solution (+10 pH).
The GLI pH sensors from PREI Instrumentation use a specially formulated glass, which like all electrodes exhibits a sodium ion error. This glass however, is unique in that the sodium ion error is constant throughout the electrodes lifetime. This is accomplished by 'controlled molecular etching' of the glass which purposely strips away one molecular layer at a time. This special characteristic provides a consistent amount of lithium ions available for exchange with the hydrogen ions to produce a similar mV potential for a similar condition.
It is possible to control a process if there is a known and consistent error in the measuring system, but impossible to control if the error is not consistent or repeatable.
Oxygen measurement in beverages
Analytical Instrumentation & Environmental Monitoring
[Sponsored] Anton Paar offers a complete range of oxygen measurement instruments for total package oxygen (TPO) measurements, at-line quality control (QC), and in-process monitoring. These instruments help beverage manufacturers achieve accurate, reliable oxygen control at every stage of production.
Read more...Analysers achieve OIML R140/MID accuracy class A certification
Analytical Instrumentation & Environmental Monitoring
Qmicro by Sensirion has received the OIML R140/MID accuracy class A certificate No. TC12537 for its DynamiQ-X GC analysers for the analysis of natural gas and natural gas blended with hydrogen.
Read more...Sustainable water management Wearcheck
Analytical Instrumentation & Environmental Monitoring
Water sustainability is critical for the future wellbeing of people, land and marine ecosystems, and socio-economic development. WearCheck Water provides a range of water analysis techniques to determine water quality for various sectors, including mining, agriculture, domestic and the healthcare industry.”
Read more...Biofilm monitoring system Instek Control
Analytical Instrumentation & Environmental Monitoring
Alvim, through Instek Controls, provides innovative, high-tech solutions for biofilm and biofouling monitoring in industrial plants.
Read more...WearCheck Water earns AdBlue/DEF analysis accreditation Wearcheck
Analytical Instrumentation & Environmental Monitoring
WearCheck Water recently became the first laboratory in Africa to be officially ISO17025 accredited to test AdBlue diesel exhaust fluid by the South African National Accreditation System.
Read more...Streamlining strain gauge load cell integration Vepac Electronics
Analytical Instrumentation & Environmental Monitoring
Vepac’s data acquisition hardware provides an efficient and effective all-in-one solution for customers looking to simplify, enhance and optimise their strain gauge load cell systems.
Read more...Oxygen measurement in beverages Anton Paar
Analytical Instrumentation & Environmental Monitoring
[Sponsored] Anton Paar offers a complete range of oxygen measurement instruments for total package oxygen (TPO) measurements, at-line quality control (QC), and in-process monitoring. These instruments help beverage manufacturers achieve accurate, reliable oxygen control at every stage of production.
Read more...Sensors and controls for food, beverage and pharmaceutical Instek Control
Analytical Instrumentation & Environmental Monitoring
Included in Instek Control’s range is Anderson-Negele, which has adopted ‘Hygienic By Design’ as its guiding principle, with a particular focus on meeting the stringent regulatory requirements found in industries such as dairy, brewery or pharmaceutical.
Read more...Vertical labelling of test tubes in clinical laboratories Omron Electronics
Analytical Instrumentation & Environmental Monitoring
Werfen has implemented a new automated machine for the supply of reagents to drug toxicology laboratories, built by MACCO in collaboration with OMRON and Marini Pandolfi. It uses OMRON SCARA robots and advanced vision systems to ensure reagent quality through vertical handling and labelling process of test tubes.
Read more...Keeping a close eye on product quality and purity Endress+Hauser South Africa
Analytical Instrumentation & Environmental Monitoring
Colour measurements are necessary in many processes to avoid product losses and ensure safe production and batching.
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