Internal Standard-Amplitude Modulated Multiplexed Flow Analysis
نویسندگان
چکیده
منابع مشابه
Air-segmented amplitude-modulated multiplexed flow analysis.
Air-segmentation is applied to amplitude-modulated multiplexed flow analysis, which we proposed recently. Sample solutions, the flow rates of which are varied periodically, are merged with reagent and/or diluent solution. The merged stream is segmented by air-bubbles and, downstream, its absorbance is measured after deaeration. The analytes in the samples are quantified from the amplitudes of t...
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Analytical conditions of amplitude-modulated multiplexed flow analysis, the basic concept of which was recently proposed by our group, are investigated for higher sample throughput rate. The performance of the improved system is evaluated by applying it to the determination of chloride ions. The flow rates of two sample solutions are independently varied in accordance with sinusoidal voltage si...
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The concept of amplitude-modulated multiplexed flow analysis has been extended to the simultaneous determination of multiple analytes in a sample. A sample solution containing nitrite and nitrate ions is delivered from two channels, but the flow rates are varied at different frequencies. One of the channels has a reduction column for converting nitrate ions to nitrite ions. Downstream, the abso...
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We describe a generalization of traditional coherence that estimates the relationship between frequency components of one or two signals at different frequencies. The key idea of this technique is to apply amplitude modulation to one of the signals prior to a traditional coherence analysis. The modulated coherence includes traditional coherence as a special case. This is useful for identifying ...
متن کاملApplication of Air Segmented Amplitude Modulated Multiplexed Flow Analysis with Software-Based Phase Recognition to the Determination of Ammonium Ion in Water Samples
Air segmented amplitude modulated multiplexed flow analysis (air segmented AMMFA) has been applied to the simultaneous determination of ammonium ions in water samples by an Indophenol Blue spectrophotometry. The flow rates of sample solutions to be merged are periodically varied at different frequencies. The merged solution, comprised of the sample solutions, coloring reagent solutions and wate...
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ژورنال
عنوان ژورنال: Analytical Sciences
سال: 2017
ISSN: 0910-6340,1348-2246
DOI: 10.2116/analsci.33.1363