Topic
Calibration curve
About: Calibration curve is a research topic. Over the lifetime, 6552 publications have been published within this topic receiving 95128 citations.
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TL;DR: The analytical approach reported in this work shows that μPADs can perform quantitative chemical analysis at very low cost.
Abstract: This article describes the use of microfluidic paper-based analytical devices (μPADs) to perform quantitative chemical assays with internal standards. MicroPADs are well-suited for colorimetric biochemical assays; however, errors can be introduced from the background color of the paper due to batch difference and age, and from color measurement devices. To reduce errors from these sources, a series of standard analyte solutions and the sample solution are assayed on a single device with multiple detection zones simultaneously; an analyte concentration calibration curve can thus be established from the standards. Since the μPAD design allows the colorimetric measurements of the standards and the sample to be conducted simultaneously and under the same condition, errors from the above sources can be minimized. The analytical approach reported in this work shows that μPADs can perform quantitative chemical analysis at very low cost.
135 citations
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TL;DR: The sensor has been applied successfully to the determination of hydrogen peroxide in rainwater and the detection limit of the method (3sigma) is 9mug/L.
134 citations
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TL;DR: A review of the state-of-the-art in the area of radiocarbon dating can be found in this paper, with a focus on the development of statistical tools that can be used with, and help develop, such calibration data.
Abstract: Calibration is a core element of radiocarbon dating and is undergoing rapid development on a number of different fronts. This is most obvious in the area of 14C archives suitable for calibration purposes, which are now demonstrating much greater coherence over the earlier age range of the technique. Of particular significance to this end is the development of purely terrestrial archives such as those from the Lake Suigetsu sedimentary profile and Kauri tree rings from New Zealand, in addition to the groundwater records from speleothems. Equally important, however, is the development of statistical tools that can be used with, and help develop, such calibration data. In the context of sedimentary deposition, age-depth modeling provides a very useful way to analyze series of measurements from cores, with or without the presence of additional varve information. New methods are under development, making use of model averaging, that generate more robust age models. In addition, all calibration requires a coherent approach to outliers, for both single samples and where entire data sets might be offset relative to the calibration curve. This paper looks at current developments in these areas.
134 citations
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TL;DR: In this paper, an on-line pre-concentration system for cadmium determination in drinking water using flame atomic absorption spectrometry (FAAS) was proposed.
133 citations
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TL;DR: In this paper, a new approach was developed in which liquid solutions were converted into solid pellets of calcium hydroxide by mixing with CaO and the plasma was produced in air at atmospheric pressure, by a pulsed Nd:YAG laser.
132 citations