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: In this paper, the intensity of individual gold nanoparticles with nominal diameters of 80, 100, 150, and 200 nm was measured using single-particle inductively coupled plasma-mass spectrometry (ICP-MS).
39 citations
TL;DR: A simple pervaporation flow injection chemiluminescence (PFI-CL) procedure was utilised as an on-line separation for the analysis of contaminated sulphite in food samples as mentioned in this paper.
39 citations
Patent•
29 May 2003TL;DR: A calibration module and methods for a time-of-flight ranging system are described in this article, where the calibration modes include amplitude calibration, frequency calibration, and time delay calibration.
Abstract: A calibration module and methods for a time-of-flight ranging system. The calibration module may be built into the circuitry of the time-of-flight ranging system and allows various operating parameters to be measured and evaluated. The calibration modes include amplitude calibration, frequency calibration, and time delay calibration. The calibration mode also includes an electronic noise measurement mode. The calibration modes may be initiated on power-up or reset, or in response to user input or time-based trigger.
38 citations
TL;DR: In this article, the dependence of the relative standard deviation (RSD) on the number of cells connected in series in the CCS potentiometric method was discussed in detail, and a significant decrease in RSD was obtained as compared with conventional single cell potentiometry.
Abstract: The dependence of the relative standard deviation (RSD) on the number of cells connected in series in the CCS potentiometric method [1] is discussed in detail. An example concerns the determination of Cu2+ ions with the use of the copper ion-selective electrode. Four cells have been applied. A significant decrease in RSD has been obtained as compared with conventional single cell potentiometry.
38 citations
TL;DR: In this article, the synthesis and evaluation of aminated-CoFe2O4/SiO2 nanoparticles that can serve as a selective solid-phase sorbent for the extraction of cadmium ion was reported.
Abstract: We report on the synthesis and evaluation of aminated-CoFe2O4/SiO2 nanoparticles that can serve as a selective solid-phase sorbent for the extraction of cadmium ion. The nanoparticles consist of a magnetic CoFe2O4 core and an amino-modified silica shell. They can efficiently extract cadmium(II) ion and then can be isolated from the sample solution due to the magnetic nature of the core. The effects of the experimental conditions on the extraction process were optimized. Cadmium was then quantified by hydride generation atomic fluorescence spectrometry. The resulting calibration curve is linear in the concentration range of 0.01–10 μg L−1, the instrumental detection limits (3σ) is 3.15 ng L−1 and the relative standard deviation is 4.9 % at the 1.0 μg L−1 level (for n = 11). The enrichment factor is 50 (for 50 mL samples), and the adsorbent can be used for at least 45 cycles of preconcentration and elution. The method was applied to the determination of cadmium in environmental water samples, and successfully validated by analyzing two certified reference materials.
38 citations