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Determination of major elements in fruit juices using the Agilent 4200 MP-AES with the Agilent 4107 Nitrogen Generator
Phuong Troung, John Cauduro, Agilent Technologies
Major elements such as calcium, magnesium, sodium, and potassium are essential nutrients in food and the routine monitoring of the levels of these elements in fruit juices in as common quality control process. With the introduction of the Agilent Microwave Plasma—Atomic Emission Spectrometer (MP-AES), several analytical challenges of using Flame Atomic Absorption Spectroscopy (FAAS) for this application have been overcome, making it the ideal instrument for laboratories looking to transition away from FAAS to a more powerful and safer technique.
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MXDPP-50 X-ray Detection Performance Characterizations
Sterling Cornaby, Moxtek
Moxtek now has a full energy dispersive X-ray fluorescence detector solution with Moxtek’s XPIN® detectors and our new MXDPP-50 electronics. We will present characterization methods and a few measurement details of the DPP with Moxtek’s XPIN® detectors.
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EDXRF Application Note Analysis of Clay
Applied Rigaku Technologies
Rigaku EDXRF application note #152 demonstrates a method for the analysis of important metal oxides in clay using the empirical approach. The results of this study indicate that the Rigaku NEX QC+ EDXRF analyzer can achieve excellent results for the measurement of the key oxides Al2O3, SiO2, K2O, TiO2 and Fe2O3 in clays.
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USEPA SW-846 Method 6010C Using the Prodigy7 ICP-OES
Manuel Almeida, Teledyne Leeman
This application note describes the capability of the Teledyne Leeman Lab’s Prodigy7 High-Dispersion ICP for performing analysis according to SW-846 Method 6010C. This method is applicable to groundwaters, Toxicity Characteristic Leaching Procedure (TCLP) and Extraction Procedure (EP), industrial organic wastes, soils, sludge, and sediments.
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Quantification of Natural Sugars in Baby Food Products by MID FTIR Spectroscopy
Shimadzu
Currently, there is a heightened consumer interest in the natural and added sugar contents of processed baby foods and juices. This note demonstrates how FTIR spectroscopy, using a horizontal attenuated total reflection accessory, offers a quick and efficient means of sugar analysis for QA/QC applications, providing the ability to acquire spectra without sample pretreatment or concern for IR water absorption.
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Generating Purge Gas for FTIR Spectroscopy
Kim Myers, Parker Balston
Fourier Transform Infrared (FT-IR) spectrometers provide spectra in less time than scanning systems, but water vapor and/or CO2 in the sample chamber leads to additional peaks that may obscure important information. These interferences can be eliminated by sealing the sample chamber and purging with dry, CO2 free air (purge gas) or nitrogen for a short period of time.
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