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ID 116826
Author
Kakiuchi, Naoya Tokushima University
Ochiai, Junya Tokushima University
Keywords
Inner product
RGB unit vector
hue
flow ratiometry
titration
digital microscope
Content Type
Journal Article
Description
The inner product (IP) of RGB unit vectors’ approach for detecting color transition has further been applied to a feedback-based flow ratiometric titration, including nonaqueous titration. While the flow ratio of titrand/titrant containing an indicator was varying, the video image of the merged solution was taken with a digital microscope downstream. The indicator’s color was converted to an RGB unit vector. The change in IP between vectors was used for determining the equivalence point. The concept was successfully applied to the determinations of drug and vinegar samples with reasonable throughput rate (> 18 s/titration) and precision (RSD < 4.4%).
Journal Title
Analytical Sciences
ISSN
13482246
09106340
NCID
AA10500785
Publisher
The Japan Society for Analytical Chemistry|Springer Nature
Volume
38
Issue
3
Start Page
623
End Page
626
Published Date
2022-03-08
Remark
This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use (https://www.springernature.com/gp/open-research/policies/accepted-manuscript-terms), but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s44211-022-00075-w
論文本文は2023-03-08以降公開予定
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
language
eng
TextVersion
その他
departments
Pharmaceutical Sciences