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Automated, High Sensitivity Analysis of Single Nanoparticles Using the Agilent 7900 ICP-MS with Single Nanoparticle Application Module
Characterization 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.
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The Agilent 7800 ICP-MS Advantage for Drinking Water Analysis
ICP-MS is widely used for the multielement analysis of trace metals in drinking waters. The newly designed 7800 ICP-MS accurately measured drinking waters for all required elements at regulated levels, without the need for either reactive cell gases or complex interference equations. Using helium collision mode, selenium detection limits less than 20 parts per trillion (ppt) are now routinely achievable.
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Ultra-Fast Determination of Trace Elements in Water, Conforming to US EPA 200.7 Using the Agilent 5100 SVDV ICP-OES
The productivity demands of environmental labs working to EPA methodology such as 200.7 for the determination of metals and trace elements in water, solids, and biosolids are met using synchronous dual view ICP-OES. The instrumentation achieves an excellent sample-to-sample cycle time of 58 s. This enables more samples to be measured each day and reduces argon consumption per sample by 50% per sample.
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Simple, Reliable Analysis of High Matrix Samples According to US EPA Method 6020A Using the Agilent 7800 ICP-MS
A challenging 15 h sequence of high matrix soils, waters, seawaters, and sediments was analyzed according to US EPA Method 6020A using a new ICP-MS designed for routine applications. With a single collision cell mode for polyatomic interference removal and superior matrix tolerance with an aerosol dilution system, excellent recovery of certified values for six SRMs with no quality control failures throughout the sequence was achieved.
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High Throughput, Low Cost Analysis of Environmental Samples According to US EPA 6010C Using the Agilent 5100 SVDV ICP-OES
A routine method for the analysis of major, minor and trace elements in a certified channel sludge reference material according to EPA method 6010C is described. Excellent recoveries were obtained for the 31 elements analyzed using an ICP-OES operating in synchronous dual view mode. A switching valve system was used to achieve a sample-to-sample analysis time of 60 s and argon consumption of 19 L per sample.
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Determination of Chromium, Selenium, and Molybdenum in Nutritional Products by ICP-MS
A 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.
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Analysis of Milk Powders Based on Chinese Standard Method Using the Agilent 5100 SVDV ICP-OES
Trace toxic and major nutrient elements were measured in a single measurement in a milk powder SRM, with no ionization buffers, using a synchronous dual view ICP-OES. The methodology was in accordance with Chinese method GB 5413.21 for raw milk and dairy products. Excellent recoveries were achieved for all elements determined in the SRM, demonstrating the accuracy of the method over a large dynamic range.
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Rapid Determination of Five Arsenic Species in Polished Rice Using HPLC-ICP-MS
Five arsenic species, including the toxicologically relevant inorganic forms As(III) and As(V), were determined in 4 min, 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.
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High Throughput Determination of Inorganic Arsenic in Rice Using Hydride Generation-ICP-MS
A 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.
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Total Metals Analysis of Digested Plant Tissue Using an Agilent 4200 Microwave Plasma-AES
Safe, 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.
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