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65 Newest Publications about the topic spectrophotometers
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Sensors, Vol. 18, Pages 1252: Improving Color Accuracy of Colorimetric Sensors
18-Apr-2018 | Kirchner, Eric ; Koeckhoven, Pim ; Sivakumar, Keshav, Sensors, 2018
Sensors, Vol. 18, Pages 1252: Improving Color Accuracy of Colorimetric Sensors Sensors doi: 10.3390/s18041252 Authors: Eric Kirchner Pim Koeckhoven Keshav Sivakumar Accurate measurements of reflectance and color require spectrophotometers with prices often exceeding $3000. ...
Sensors, Vol. 18, Pages 1252: Improving Color Accuracy of Colorimetric Sensors
18-Apr-2018 | Kirchner, Eric ; Koeckhoven, Pim ; Sivakumar, Keshav, Sensors, 2018
Sensors, Vol. 18, Pages 1252: Improving Color Accuracy of Colorimetric Sensors Sensors doi: 10.3390/s18041252 Authors: Eric Kirchner Pim Koeckhoven Keshav Sivakumar Accurate measurements of reflectance and color require spectrophotometers with prices often exceeding $3000. ...
Spectrophotometric Determination of Carbonate Ion Concentrations: Elimination of Instrument-Dependent Offsets and Calculation of In Situ Saturation States
04-Aug-2017 | Jonathan D. Sharp; Robert H. Byrne; Xuewu Liu; Richard A. Feely; Erin E. Cuyler; Rik Wanninkhof; Simone R. Alin, Environmental Science & Technology, 2017
This work describes an improved algorithm for spectrophotometric determinations of seawater carbonate ion concentrations ([CO32–]spec) derived from observations of ultraviolet absorbance spectra in lead-enriched seawater. Quality-control assessments of [CO32–]spec data obtained on two NOAA ...
Sensors, Vol. 17, Pages 1730: Portable Multispectral Colorimeter for Metallic Ion Detection and Classification
28-Jul-2017 | Braga, Mauro S.; Jaimes, Ruth F. V. V.; Borysow, Walter ; Gomes, Osmar F.; Salcedo, Walter J., Sensors, 2017
Sensors, Vol. 17, Pages 1730: Portable Multispectral Colorimeter for Metallic Ion Detection and Classification Sensors doi: 10.3390/s17081730 Authors: Mauro Braga Ruth Jaimes Walter Borysow Osmar Gomes Walter Salcedo This work deals with a portable device system applied to ...
Physiological processes associated with salinity tolerance in an alfalfa half‐sib family
21-Jun-2017 | M. Rokebul Anower, M. D. Peel, I. W. Mott, Y. Wu, Journal of Agronomy and Crop Science, 2017
Abstract We previously reported an alfalfa half‐sib family, HS‐B, with improved salt tolerance, compared to parental plants, P‐B. In this study, we conducted additional experiments to address potential physiological mechanisms that may contribute to salt tolerance in HS‐B. Vegetatively ...
Self-Polymerization of Dopamine in Acidic Environments without Oxygen
30-May-2017 | Tung-Po Chen; Tianchi Liu; Tsan-Liang Su; Junfeng Liang, Langmuir, 2017
An alkaline environment and the presence of oxygen are essential requirements for dopamine polymerization. In this study, we are the first to demonstrate the self-polymerization of dopamine through plasma-activated water (PAW) under acidic environments (pH < 5.5). Resulting poly(dopamine) (PDA) ...
The formation of α-phase SnS nanorods by PVP assisted polyol synthesis: Phase stability, micro structure, thermal stability and defects induced energy band transitions
12-Feb-2017 | Author(s): Benjamin Hudson Baby, D. Bharathi Mohan, Materials Chemistry and Physics, 2017
Publication date: 1 May 2017 Source:Materials Chemistry and Physics, Volume 192 Author(s): Benjamin Hudson Baby, D. Bharathi Mohan We report the formation of single phase of SnS nanostructure through PVP assisted polyol synthesis by varying the source concentration ratio (Sn:S) from ...
Low-Cost, Robust, and Field Portable Smartphone Platform Photometric Sensor for Fluoride Level Detection in Drinking Water
16-Dec-2016 | Iftak Hussain; Kamal Uddin Ahamad; Pabitra Nath, Analytical Chemistry, 2016
Groundwater is the major source of drinking water for people living in rural areas of India. Pollutants such as fluoride in groundwater may be present in much higher concentration than the permissible limit. Fluoride does not give any visible coloration to water, and hence, no effort is made to ...
Colour matching comparison between spectrophotometric and multispectral imaging measurements
28-Jan-2016 | Lin Luo, Hui‐Liang Shen, Si‐Jie Shao, John H. Xin, Coloration Technology, 2016
This paper compares colour matching of yarn‐dyed fabrics by spectrophotometric and multispectral imaging techniques. While it is well known that multispectral imaging systems can measure the colour of fabrics that cannot be acquired by spectrophotometers, comparison of these two types of ...
Broadly Available Imaging Devices Enable High-Quality Low-Cost Photometry
24-Aug-2015 | Dionysios C. Christodouleas; Alex Nemiroski; Ashok A. Kumar; George M. Whitesides, Analytical Chemistry, 2015
This paper demonstrates that, for applications in resource-limited environments, expensive microplate spectrophotometers that are used in many central laboratories for parallel measurement of absorbance of samples can be replaced by photometers based on inexpensive and ubiquitous, consumer ...
