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| \  / ||  /_   _//  / ____||  /_   _//  | \| || 
|  \/  ||   -| ||-  / //---`'   -| ||-   |  ' || 
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|_|\/|_||  /_____//  \_____||  /_____//  |_|\_|| 
`-`  `-`   `-----`    `----`   `-----`   `-` -`

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Text this: Application of smartphone as a digital image colorimetric detector for batch and flow-based acid-base titration