16 Sigma-Aldrich use Metrohm ProcessLab to Increase Sample Throughput
Sigma-Aldrich is a leading manufacturer of fine chemicals for R&D in chemistry and biochemistry. At their production facility in Steinheim, Germany, they rely on a Metrohm ProcessLab to cope with the high throughput and daily changing chemical products manufactured in their state-of-the-art facility.
“By titration alone we determine 10’000 different chemicals. 75% of those applications are carried out on our Metrohm ProcessLab”, says Dr Helmut George, Production Manager at Sigma-Aldrich in Steinheim. Their ProcessLab system is a custom solution provided by Deutsche Metrohm Prozessanalytik, who were happy to meet the high demands placed on the system by Sigma-Aldrich’s application chemists.
“We can choose the appropriate method for each product without having to change the exchange unit” says Application Chemist, Daniel Matuschka, pointing out the major benefit of their ProcessLab system. “This system operates fully automatically”, Matuschka continues, “including solving, titrating, rinsing and disposing of the sample”. The video about this customer story can be watched on
www.metrohm.com
Circle no. 340
ADVERTORIAL
Evonik Goldschmidt use Custom Titration System to Determine Iodine Value
Evonik Goldschmidt is a leading manufacturer of fine chemicals for the cosmetics and other industries. In their wet chemistry QC lab in Essen, Germany, they use a customised Metrohm autosampler to determine the iodine value in their steady stream of samples.
500 batches are analysed per week for various parameters by the wet chemistry lab of Evonik Goldschmidt. They cope with this high load of samples thanks to a fully automated titration system designed and implemented by the specialists of Metrohm. The engineers of Deutsche Metrohm spared no effort to meet the highly specific demands of Evonik Goldschmidt: “Metrohm designed a custom-rack for us”, says Christian Götz, Deputy Lab Manager at Evonik Goldschmidt, “they even designed and implemented a customised lid-remover for our special Erlenmeyer flasks” he continues.
Like all other Metrohm customers, Götz and his colleagues at Evonik Goldschmidt benefit from the extensive know-how and experience of Metrohm’s application chemists and service engineers providing outstanding support. The video about this customer story can be watched on
www.metrohm.com
Circle no. 341
SGS INSTITUT FRESENIUS Automate Determination of Permanganate Index with Metrohm Autosampler
SGS INSTITUT FRESENIUS is one of Germany’s biggest environmental laboratories. They have successfully automated the determination of the permanganate index using a Metrohm 855 Robotic Titrosampler.
SGS INSTITUT FRESENIUS automate processes as far as possible. However, the permanganate index of water samples used to be determined manually. This was the case for years – until the specialists of Metrohm Deutschland could help. “They were the only ones who were able to offer a convincing solution for the automation of the permanganate index” says David Welter, Team Leader, Sum Parameters at SGS INSTITUT FRESENIUS. The benefits for him and his colleagues are obvious: they save a lot of time while reducing the risk of human error to virtually zero. The video about this customer story can be watched on
www.metrohm.com
Circle no. 342
Straightforward Water Determination in Various Plastics
The presence of excessive water in plastics adversely affects the performance of polymeric goods. This is why water determination is of crucial importance. Metrohm describes the straightforward and accurate determination of the water content using the Karl Fischer Oven Method in ten different plastic types. The plastic sample being tested is heated in a hermetically sealed vial. The moisture liberated from the sample is transferred via a dry carrier gas stream into the titration cell where it is coulometrically titrated. For every plastic type, the optimum oven temperature can be determined in a water release curve. This procedure ensures fast and quantitative water extraction in a reasonable time while – very important – excluding interfering decomposition reactions.
Thermally stable polycarbonates, fibre-reinforced polyesters and acrylonitrile-butadiene-styrene (ABS) resins need to be heated to 230ºC to extract water. Thermally less stable resins such as polyamides and PVC need only to be heated to 150 and 100ºC, respectively.
The water content in the following plastics was determined: • Terluran® • Grilamid® • Ultramid® • Ultramid®
GP-22 Natural TR 55 Natural A3K Natural A3K Black
• Ultramid A 3H-G5 Black • Grivory HTV-3H1 Natural • PET regrind (recycled) • PET regrind (new) •PVC • Makrolon®
New Metrohm Brochure ‘Battery research’
Metrohm has published a new brochure on instrumentation and applications for electrochemical characterisation of batteries. The brochure is free of charge and can be ordered from your local Metrohm distributor.
The total power output of a battery is determined by the properties of the electrolytes used and of the anode and cathode materials. Electrochemical instrumentation and methods available from Metrohm and Metrohm Autolab are recommended for, e.g.:
• determining current/voltage characteristics • test for polarity reversal (charging) of batteries • characterising aging effects using impedance spectroscopy • recording discharge and charge cycles • determining battery capacity
• measuring the electrolyte resistance and charge transfer resistance (electrode reaction)
• determining pulse power rating/high-current capability
State-of-the-art ion chromatography using Metrohm’s 850 Professional IC instruments, on the other hand, is a highly efficient way to determine:
• fluoride, hexafluorophosphate, tetrafluoroborate and lithium in eluates of particular components such as anodes, cathodes and separator foils
1243 (colour code 550111) Circle no. 343 • fluoride, hexafluorophosphate and lithium in electrolyte liquids Circle no. 344
LAB ASIA - JULY/AUGUST - ADVERTORIAL
WWW.LABMATE-ONLINE.COM
READ ALL THE LATEST NEWS ACCESS ARCHIVED ARTICLES FOLLOW LABMATE ON TWITTER
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56
