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Latest:
Automated, High Sensitivity Analysis of Single Nanoparticles Using the Agilent 7900 ICP-MS with Single Nanoparticle Application ModuleCharacterization of nanoparticles (NPs), including samples containing different sized NPs is described using ICP-MS. New integrated data analysis software is capable of quickly and automatically performing the complex calculations required for the analysis of single particles, while permitting simple, visual optimization and validation of results. The method provides a combination of particle size distribution and sample concentration information that is generally not available with other techniques.
Latest:
Automated, High Sensitivity Analysis of Single Nanoparticles Using the Agilent 7900 ICP-MS with Single Nanoparticle Application ModuleCharacterization of nanoparticles (NPs), including samples containing different sized NPs is described using ICP-MS. New integrated data analysis software is capable of quickly and automatically performing the complex calculations required for the analysis of single particles, while permitting simple, visual optimization and validation of results. The method provides a combination of particle size distribution and sample concentration information that is generally not available with other techniques.
Latest:
Harvesting Better Reflectance Results: Dynamic Sampling for NIR Food AnalysisNIR reflectance spectroscopy provides a reliable method for measuring food quality. Monitoring parameters such as moisture, protein and fat content is a critical part of managing quality throughout the supply chain. In this application note, we examine the impact of dynamic sampling on improving the repeatability of NIR reflectance measurements of corn kernels without increasing the total time or frequency of measurements.
Latest:
High Throughput Determination of Inorganic Arsenic in Rice Using Hydride Generation-ICP-MSA fast and sensitive method using hydride generation (HG) with ICP-MS has been developed for the separation and detection of toxic inorganic arsenic (iAs) in foodstuffs. The iAs measured values in 31 commercial rice products all fell below the current legislative maximum level of 150 µg/kg set by China. Comparing the results obtained by HG-ICP-MS and HPLC-ICP-MS showed comparable limits of detection were achieved.
Latest:
Determination of Chromium, Selenium, and Molybdenum in Nutritional Products by ICP-MSA validated ICP-MS method for the determination of Cr, Se, and Mo in infant formula and adult nutritional products was transferred to a next-generation system. This methodology is potentially suitable as a global reference method for the application, as all samples can be analyzed using a single-cell gas mode (helium mode) that provides effective removal of polyatomic interferences - significantly improving productivity.
Latest:
High Throughput Determination of Inorganic Arsenic in Rice Using Hydride Generation-ICP-MSA fast and sensitive method using hydride generation (HG) with ICP-MS has been developed for the separation and detection of toxic inorganic arsenic (iAs) in foodstuffs. The iAs measured values in 31 commercial rice products all fell below the current legislative maximum level of 150 µg/kg set by China. Comparing the results obtained by HG-ICP-MS and HPLC-ICP-MS showed comparable limits of detection were achieved.
Latest:
Rapid Determination of Five Arsenic Species in Polished Rice Using HPLC-ICP-MSFive arsenic species, including the toxicologically relevant inorganic forms As(III) and As(V), were determined in 4 minutes, with excellent sensitivity, accuracy and precision using an Agilent LC fitted with a reversed phase column coupled to an ICP-MS. Any potential interferences on As such as ArCl+ were removed using a single-cell gas mode (helium mode), speeding up the analysis.
Latest:
High Throughput Determination of Inorganic Arsenic in Rice Using Hydride Generation-ICP-MSA fast and sensitive method using hydride generation (HG) with ICP-MS has been developed for the separation and detection of toxic inorganic arsenic (iAs) in foodstuffs. The iAs measured values in 31 commercial rice products all fell below the current legislative maximum level of 150 µg/kg set by China. Comparing the results obtained by HG-ICP-MS and HPLC-ICP-MS showed comparable limits of detection were achieved.
Latest:
Rapid Multielement Nanoparticle Analysis Using Single-Particle ICP-MS/MSComplex isobaric and polyatomic spectral interferences can be mitigated using triple quadrupole ICP-MS (ICP-MS/MS) with a collision–reaction cell (CRC). This configuration allows for the multielement characterization and detection of smaller nanoparticle sizes.
Latest:
High Throughput Determination of Inorganic Arsenic in Rice Using Hydride Generation-ICP-MSA fast and sensitive method using hydride generation (HG) with ICP-MS has been developed for the separation and detection of toxic inorganic arsenic (iAs) in foodstuffs. The iAs measured values in 31 commercial rice products all fell below the current legislative maximum level of 150 µg/kg set by China. Comparing the results obtained by HG-ICP-MS and HPLC-ICP-MS showed comparable limits of detection were achieved.
Latest:
High Throughput Determination of Inorganic Arsenic in Rice Using Hydride Generation-ICP-MSA fast and sensitive method using hydride generation (HG) with ICP-MS has been developed for the separation and detection of toxic inorganic arsenic (iAs) in foodstuffs. The iAs measured values in 31 commercial rice products all fell below the current legislative maximum level of 150 µg/kg set by China. Comparing the results obtained by HG-ICP-MS and HPLC-ICP-MS showed comparable limits of detection were achieved.
Latest:
High Throughput Determination of Inorganic Arsenic in Rice Using Hydride Generation-ICP-MSA fast and sensitive method using hydride generation (HG) with ICP-MS has been developed for the separation and detection of toxic inorganic arsenic (iAs) in foodstuffs. The iAs measured values in 31 commercial rice products all fell below the current legislative maximum level of 150 µg/kg set by China. Comparing the results obtained by HG-ICP-MS and HPLC-ICP-MS showed comparable limits of detection were achieved.
Latest:
High Throughput Determination of Inorganic Arsenic in Rice Using Hydride Generation-ICP-MSA fast and sensitive method using hydride generation (HG) with ICP-MS has been developed for the separation and detection of toxic inorganic arsenic (iAs) in foodstuffs. The iAs measured values in 31 commercial rice products all fell below the current legislative maximum level of 150 µg/kg set by China. Comparing the results obtained by HG-ICP-MS and HPLC-ICP-MS showed comparable limits of detection were achieved.
Latest:
Total Metals Analysis of Digested Plant Tissue Using an Agilent 4200 Microwave Plasma-AESSafe, low cost MP-AES analysis of total metal content of a plant-based reference material following microwave digestion is presented. Elements that are difficult to analyze by FAAS such as B and P were included, with all data acquired in a single run. Accurate determinations over a wide concentration range and with better detection limits and sample throughput compared to FAAS were obtained.
Latest:
Raman Spectroscopy of Carbonaceous Materials: A Concise ReviewA critical review focused on the Raman spectroscopy of carbonaceous materials and of polymer-based nanocomposites that contain carbonaceous (nano) materials as fillers
Latest:
Multi-Residue Pesticide Analysis Using a GC Triple Quadrupole Mass SpectrometerThere are currently more than 1000 pesticides in use worldwide in the production of foodstuffs. There is a significant risk to human health and the environment due to increased pesticide use, poor agricultural practices and illegal use.
Latest:
Agricultural and Environmental Management with Raman SpectroscopyRaman spectroscopy is applied to quality control of agricultural products with greater frequency, and can also be used to refine regulatory criteria for both agricultural and environmental monitoring. It is now integrated into everything from hand held SERS detectors to unmanned aerial vehicles to monitor the gamut from genetic variation to soil and water content. Development opportunities, particularly with bundled technologies, continue to emerge as demand for quality assurance increases.
Latest:
Agricultural and Environmental Management with Raman SpectroscopyRaman spectroscopy is applied to quality control of agricultural products with greater frequency, and can also be used to refine regulatory criteria for both agricultural and environmental monitoring. It is now integrated into everything from hand held SERS detectors to unmanned aerial vehicles to monitor the gamut from genetic variation to soil and water content. Development opportunities, particularly with bundled technologies, continue to emerge as demand for quality assurance increases.
Latest:
Agricultural and Environmental Management with Raman SpectroscopyRaman spectroscopy is applied to quality control of agricultural products with greater frequency, and can also be used to refine regulatory criteria for both agricultural and environmental monitoring. It is now integrated into everything from hand held SERS detectors to unmanned aerial vehicles to monitor the gamut from genetic variation to soil and water content. Development opportunities, particularly with bundled technologies, continue to emerge as demand for quality assurance increases.
Latest:
Detection of Chemicals with Standoff Raman SpectroscopyA compact standoff Raman system can be used to detect hazardous chemicals and chemicals used in homemade explosives synthesis.
Latest:
Using Near-Infrared Spectroscopy to Monitor the Curing Reaction of Silicone AdhesivesIn recent years there has been increased use of silicones in medicine, especially for medicinal implants. Quality control of intracorporeal-used silicones is an important task for ensuring patients’ health, but it is also a challenging one. The traditional mechanical methods used for the quality control of these silicone products, like rheometric measurements, tend to waste a lot of raw material. In this study, near-infrared spectroscopy (NIRS) has been used to replace the traditional method (rheometric measurements of control samples) using rheometry only as reference method to generate different calibration models. The applicability of NIRS as non-invasive analysis method is proven and the developed calibration models for curing processes of a silicone-adhesive at different temperatures are shown.
Latest:
Advanced Structural Mass Spectrometry for Systems Biology: Pulling the Needles from HaystacksIon mobility–mass spectrometry (IM-MS) is outlined as a separations method, several examples of the utility of IM-MS for complex biological measurements are illustrated, and the implications of this approach for systems biology research are discussed.
Latest:
High Temperature and Pressure Automated Sequential Microwave Digestion of Bunker OilCEM's Discover SP-D Gold microwave digestion system with high temperature and pressure chamber enables safe, fast, and automated preparation of previously difficult sample types
Latest:
Avoiding Misunderstanding Self-Absorption in Laser-Induced Breakdown Spectroscopy (LIBS) AnalysisThe physics and chemistry of the phenomenon have been well known for many years, and this knowledge can tell us how self-absorption can be not only “corrected,” but also tuned to our advantage in analytical applications of LIBS.
Latest:
Applying LIBS to Metals ProcessingThe monitoring of the processes in steel and metal industry calls for techniques that are capable of measuring the composition of metallic alloys at a distance and on moving conveyor belts. In many cases, such as in the recycling of automotive scrap, the geometry of the objects to be analyzed can vary, and surface coatings can be present. In this paper, we discuss the application of LIBS to two industrial projects to illustrate how the above-mentioned problems can be faced and successfully resolved.
Latest:
Applying LIBS to Metals ProcessingThe monitoring of the processes in steel and metal industry calls for techniques that are capable of measuring the composition of metallic alloys at a distance and on moving conveyor belts. In many cases, such as in the recycling of automotive scrap, the geometry of the objects to be analyzed can vary, and surface coatings can be present. In this paper, we discuss the application of LIBS to two industrial projects to illustrate how the above-mentioned problems can be faced and successfully resolved.
Latest:
Applying LIBS to Metals ProcessingThe monitoring of the processes in steel and metal industry calls for techniques that are capable of measuring the composition of metallic alloys at a distance and on moving conveyor belts. In many cases, such as in the recycling of automotive scrap, the geometry of the objects to be analyzed can vary, and surface coatings can be present. In this paper, we discuss the application of LIBS to two industrial projects to illustrate how the above-mentioned problems can be faced and successfully resolved.
Latest:
Applying LIBS to Metals ProcessingThe monitoring of the processes in steel and metal industry calls for techniques that are capable of measuring the composition of metallic alloys at a distance and on moving conveyor belts. In many cases, such as in the recycling of automotive scrap, the geometry of the objects to be analyzed can vary, and surface coatings can be present. In this paper, we discuss the application of LIBS to two industrial projects to illustrate how the above-mentioned problems can be faced and successfully resolved.
Latest:
VT-DRIFTS Investigations of Interactions Between Benzoic Acid and Montmorillonite ClayHigh stability Fourier transform-infrared (FT-IR) interferometers make it possible to conduct experiments designed to identify subtle sample structure changes resulting from external perturbations. In particular, IR spectrum measurements obtained while heating samples can be used to associate specific structure changes with incremental additions of thermal energy. This paper describes the application of variable temperature diffuse reflection infrared Fourier transform spectroscopy (VT-DRIFTS) for analysis of benzoic acid adsorbed on montmorillonite clay. The technique described here is generally applicable for soil adsorbate characterization studies, and therefore should be useful for elucidating soil transport mechanisms for selected contaminants.
