892 Professional Rancimat Determination of the oxidation stability of - Fat-containing foods

The 892 Professional Rancimat, in together with StabNet software, is an analytical system for easy and reliable determination of the oxidation stability of natural oils and fats using the long-established Rancimat method. Oxidation stability of vegetable and animal oils and fats Examination of the effectiveness of antioxidants Oxidation stability of oil and fat-containing foods and cosmetics Antioxidation capacity of various foods The 892 Professional Rancimat is controlled via the PC by StabNet software. Determination itself, however, can be started very conveniently directly on the instrument....

Oxidation stability of oils and fats The Rancimat test The 892 Professional Rancimat measures the oxi dation stability of oils and fats. The Rancimat method (named after our instrument) involves heating the sample and passing air through it to accelerate oxidation. The release of volatile acids due to oxidation is recorded as an increase in conductivity in the sample. The time until these products are released is called the induction time, which defines the sample’s resistance to oxidation. The induction time is a standard parameter utilized in the food industry to assess the quality of fats...

Oxidation stability of foods Oxidation stability of cosmetics Many foods contain oils and fats, either naturally or as a result of production. Just like the pure substan ces, the hidden oils and fats are also subject to oxidation, which contributes to their spoilage. Thus, the 892 Professional Rancimat can also be used to determine the oxidation stability of foods containing oils and fats. Many natural cosmetics and other high-quality cosmetic products contain a substantial proportion of vegetable oils and fats. For example, cocoa butter is an ingredient in many lip and body care products. In...

The 892 Professional Rancimat in detail INSTRUMENT DISPLAY The status of the instrument and of each individual measuring position can be watched on the color instrument display. It shows the temperature of the two heating blocks, the gas flow, the status of the measuring position and the conductivity measured in each measuring position. EASY HANDLING OF THE REACTION VESSELS Preparation of the reaction vessel, weighing-out of the sample and closing of the reaction vessel are very simple and safe. The use of disposable glass parts means there is no need for time-consuming cleaning after measuring....

StabNet - modern software for stability measurements StabNet is the modern and user-friendly software for carrying out stability measurements and archiving the measurement data. The characteristic features of StabNet are its ease of use and flexibility. This is evident already in the «Workplace» part of the program, where the day-to-day work is done. Here users will find all the elements that are needed to carry out determinations. The structure of the «Workplace» shows the setup of the 892 Professional Rancimat with its 2 heating blocks and the 8 measuring positions. Up to four 892 Professional...

StabNet Completed determinations are stored in a database. In the «Database» part of the program it is possible to view the determinations including all the determination, method and instrument parameters. Recalculation of determinations Should it ever be necessary, determinations can also be processed at a later time, either by recalculation with different evaluation parameters or by manual evaluation of the curve with tangents. The original data are not lost. All versions of the determination are archived. Convenient sort, search and filter functions make it easy to find data quickly. ^ X’...

Other helpful database functions Results Mean value: 8.6 h Absolute standard deviation: 0.42 h Relative standard deviation: 4.92 % Minimum: 8.0 h Maximum: 9.0 h Statistical calculations Confirmation of relevant results usually requires multiple determinations. StabNet offers the possibility of linking 2 or 4 replicate determinations together statistically. At the end of the multiple determinations, statistical data, such as the mean value and the absolute and relative standard deviations, are then calculated automatically in addition to the individual result. The function «Detail overview» shows...

Data integrity and security Data integrity necessitates complete, consistent, and accurate data throughout its lifecycle for transparency and traceability. Industry standards (FDA, WHO, PIC/S, GAMP) follow ALCOA and ALCOA+ acronyms. Our StabNet software guarantees ALCOA and ALCOA+ requirements for data integrity. Security Data security and the traceability of results are becoming ever more important. In StabNet the access rights of each user can be defined in accordance with the in-house security scheme. Password protection prevents unauthorized access to parts of the program and to data. Furthermore,...

Technical specifications Minimum PC requirements for StabNet Heating blocks Operating system 64-bit version of: − Windows 11 Pro / Enterprise − Windows 10 Pro / Enterprise − Windows Server 2022 − Windows Server 2019 − Windows Server 2016 Hard disk space Program: 1 GB Data: − Minimum: 10 GB − Recommended: 50 GB 1 for each instrument that is connected (maximum 4) 10 Mbit/s, stable and permanent communication via TCP/IP 2 aluminum heating blocks; electrically heated; can be set to different temperatures Temperature control Temperature range Temperature correction Deviation of the block temperature...

Subject to change | Layout by RTS Rieger Team, printed in Switzerland by Metrohm AG, CH-9101 Herisau 8.892.5001 EN - 2023-08 © Metrohm AG. All trademarks are the property of Metrohm and its subsidiaries. ORDERING INFORMATIONInstrument 2.892.0010 892 Professional Rancimat Instrument for the determination of the oxidation stability of natural fats and oils. All accessories necessary for the performance of the determinations 1are included in the scope of delivery. The StabNet software is required for instrument control, data recording and evaluation and for data storage (not included). 6.5616.100...