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Download News 1/2018 Hot, Hotter, Bombfire The new Nexera Mikros Pop the corks: Pungency of Currywurst New micro-flow LC-MS solution – 50 th anniversary of Shimadzu high sensitivity, durability and ease- in Europe of-use CONTENT APPLICATION How X-ray fluorescence can support consumer prices stability – How X-ray fluorescence All-in-one analysis with EDX-8000P 2 Into the microwave! – Analysis of fatty acids in foods 4 can support consumer New solutions for treating plastic waste – FTIR analysis of biodegrad - able polymers from everyday life 6 Hot, Hotter, Bombfire – prices stability Pungency of Currywurst 10 Olive oil is top source of vitamin E – A quantitative Aluminum fluoride all-in-one analysis with EDX-8000P fluorescence analysis of tocopherols 12 Flavors in beer determined by Headspace-GC – GC-20 10 Plus in the Quality Control procedure of a large Greek brewery 14 PRODUCTS New micro-flow LC-MS solution – Nexera Mikros provides high sensi- tivity, durability and ease-of-use 9 LATEST NEWS Troubleshooting via YouTube – Video tutorials using the new GC generation Nexis GC-2030 as an example 18 Pop the corks: 50 th anniversary of Shimadzu in Europe – Time to celebrate 20 READ FOR YOU Guardian in the chemical park – TOC process measurement at Leuna Chemical Park, Germany 16 Less than a teaspoon of blood can predict Alzheimer ’s Figure 1: Aluminum cookware: the easiest way to cook and transport various disease risk 19 food dishes owadays, aluminum as a cess of electrolysis requires a ined in order to prevent main chemical element plays an huge amount of electricity. Some product contamination (metallic N important role in every - industrial processes using alu - aluminum). day life. Due to its low weight minum fluoride AlF 3 (approxi - and good thermal conduction, mately 5 - 15 %) and other addi - AlF 3 quality analysis: aluminum and its alloys are the tives have been developed to a constant challenge for MARKETS basis for modern aviation indus - decrease the melting point to 930 laboratories try, aerospace engineering, pro - - 950 °C and to increase conduc - Chemical, Petrochemical, Biofuel and Energy duction of automobiles, rolling tivity of the electrolyte solution. According to the Russian GOST stock for high speed trains, sea This reduces energy consump - regulation (national standard of Clinical and river vessel s... tion and greatly decreases the the Russian Federation and CIS cost of the aluminum. countries), standard chemical Environment Moreover, this element is ex - analysis of aluminum fluoride tremely popular in the produc - Before being used as an additive, includes many time-consuming Food, Beverages, Agriculture tion of cookware or foils used aluminum fluoride has to be ana - sample preparation steps includ - for packaging in the food indus - lyzed in order to check the con - ing fusion and dissolution. In Pharmaceutical try. tent of the main component. At addition, different analysis meth - the same time, the main impurity ods are used for each compound: Plastics and Rubber Aluminum is produced by elec - (aluminum oxide) as well as titration for quantitative analysis trolysis of alumina dissolved in harmful elements such as silicon, of AlF 3, free aluminum oxide Automotive a molten cryolite bath. The pro - phosphorus and iron are exam - (Al 2O3) determination by trilo - SHIMADZU NEWS 1/20 18 APPLICATION nometric measurement of alu - Concentration, wt. % minum, and photometric analysis Russian Standard Sample 1 Sample 2 Sample 3 Sample 4 of silicon, phosphorus and iron GOST 19181-78 Chem. EDX Chem. EDX Chem. EDX Chem. EDX oxides (SiO 2, Fe 2O3 and P 2O5). AIF 3 > 93 94.5 94.9 95.8 95.2 96.1 96.0 96.0 95.9 So, complete analysis of one sam - AI 2O3 > 4 2.7 2.6 2.5 2.3 1.9 2.1 2.1 2.2 ple (including sample preparation) takes more than twelve hours and Table 1: Comparison of results of main component and Al 203 in AlF 3 analysis by chemical methods (Chem.) and EDX-8000P requires many chemical reagents and devices. Concentration, wt. % Russian Standard Sample 1 Sample 2 Sample 3 Sample 4 Use of the EDX-8000P Energy GOST 19181-78 Chem. EDX Chem. EDX Chem. EDX Chem. EDX Dispersive X-ray fluorescence SiO 2 > 0.25 0.15 0.18 0.16 0.16 0.11 0.14 0.09 0.12 spectrometer appears to offer a P2O5 > 0.05 0.026 0.025 0.026 0.024 0.03 0.027 0.018 0.021 valuable alternative way to simpli - Fe 2O5 > 0.08 < 0.02 0.015 < 0.02 0.015 < 0.02 0.01 0.030 0.027 fy and dramatically decrease ana - lysis time. This spectrometer is in Table 2: Comparison of results for SiO 2, P 2O5 and Fe 2O3 analysis by chemical methods (Chem.) and EDX-8000P fact able to analyze all elements from carbon up to uranium in a cluded in the standard spectrome - (titration and photometry) analy - Total analysis time of all elements simultaneous measurement. More - ter software (PCEDX). Neverthe - sis obtained for fluorine and alu - including sample preparation was over, target concentration ranges less, a single standard sample was minum are given in table 1. only approximately thirty minu - are compatible with the EDX used to perform methods calibra - tes. spectrometer sensitivity. The tion in order to improve accuracy The other contaminants (silicon, EDX-8000P is BfS (safety stan - of results. Aluminum fluoride phosphorus and iron oxides) were Conclusion dards of the German Federal content was calculated on the analyzed using calibration curve Institute for Radiation Safety) basis of fluorine element concen - method with corresponding ele - All EDX results shown in tables 1 type approval certified. tration. Aluminum oxide Al 2O3 ment specific K␣ lines. Calibra - and 2 showed excellent correlation concentration was then evaluated tion curves for each oxide are with official regulation analysis New fast and easy X-ray by the aluminum peak after alu - shown in figure 3. The results of methods results. This demon - fluorescence method for minum fluoride subtraction. X-ray and chemical analyses are strates that the EDX-8000P analy - AlF 3 analysis Results of X-ray and chemical given in table 2. sis procedure is a valuable alterna - tive to traditional time-consuming Samples of AlF 3 were prepared methods. By decreasing analysis for analysis by grinding in the time and chemical product con - mixer mill and pressing in the pel - sumption, this new strategy can let press. The same sample prepa - contribute to reduced aluminum ration is used for single AlF 3 stan - material prices and in the end to dard sample with a known content price stability of consumer prices of the main component and for food packaging, convenience Al 2O3. Calibration samples for foods and freshly prepared meals analysis of SiO 2, P 2O5 and Fe 2O3 on wheels. were prepared by adding known amounts of element oxides to Acknowledgements AlF 3 standard sample and subse - quent mixing, grinding and press - We gratefully acknowledge the ing. valuable advice and assistance in EDX analysis of our colleagues A routine measurement procedure from the accredited Analit Com - of unknown sample by Funda men - pany (St. Petersburg, Russia) labo - tal Parameters (FP) method is in - Figure 2: Energy dispersive X-ray fluorescence spectrometer EDX-8000P ratory. 9.0 8.0 0.14 8.0 Si K ␣ ␣ 7.0 0.12 P K ␣ 7.0 Fe K 6.0 0.10 6.0 5.0 5.0 0.08 4.0 4.0 0.06 3.0 3.0 2.0 0.03 2.0 1.0 0.02 1.0 0.0 0.00 0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0.000 0.005 0.010 0.015 0.020 0.025 0.030 0.035 0.000 0.005 0.010 0.015 0.020 Figure 3: Calibration curves obtained for each targeted contaminant SHIMADZU NEWS 1/20 18 3 APPLICATION Into the microwave! Analysis of fatty acids in foods ous digestion and extraction of the ed extraction (cold). These steps lipids. The microwave used for are carried out with fresh solvent this was a Discover SP-D ® instru - after digestion. As a compromise ment manufactured by the between complete recovery and German-based CEM company. required analysis time and con - sumption of chemicals, three Total fat contents of the reference extraction steps were carried out materials investigated – milk pow - for each analysis. der and chocolate – were recov - ered completely. All non-certified ISO vs. microwave samples also gave very good recov - ery rates of > 90 wt.-% total fat In the long term, the microwave with standard deviations between method of determining total fat 0.6 and 3.7 wt.-%. This clearly presents an attractive alternative demonstrates that successful because it offers considerable sav - determination of the total fat in ings in resources. Experiments real samples using the microwave showed that a single determination method is matrix-dependent. of total fat using the micro wave method takes 1.5 h, whereas the In particular, the homogeneity of ISO method takes up to 9.5 h. The the sample influences the com - microwave method thus of fers a pleteness of the extraction. This time saving of 8hwhile also requir - he EU regulation on the methyl esters (FAMEs) according especially affects foods such as ing less instrumentation. Further - provision of food informa - to ISO 1296 6-2:20 11, and their potato chips and infant formula more, it requires much smaller T tion to consumers (No. GC analysis according to ISO powder due to their inhomogene - quantities of chemicals, particular - 1169/20 11) [1] requires all food 1296 6- 4:20 15 [3].
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