#colorimetric

These common drug tests lead to tens of thousands of wrongful arrests a year, experts say. One state is fighting back A great-grandmother’s medicine tested positive for cocaine – spawning a 15-month legal nightmare, forcing her to refinance her home, and spurring a new state law that could set a precedent across the ...

“… #colorimetric #DrugTests – a field test widely used by #LawEnforcement across the US.…

Have “…false positives at alarming rates, researchers from the #UnivOfPA found (error rate) 15% to 38%.

#NYC #DOI #error rates from 79% to 91% in some correctional settings.”

www.yahoo.com/news/article...

The $2 #colorimetric drug tests are frequently wrong and contribute to tens of thousands of wrongful arrests in the United States each year. Colorado has a new law preventing their abuse.

True Happiness Is Seeing That Dark Pink Color

True Happiness Is Seeing That Dark Pink Color

#Chemistry #Lab-life #Colorimetric #Reactions #Permanganate

sciencehumor.io/chemistry-memes/true-hap...

A Mitochondria-Targeted Ratiometric and Colorimetric Fluorescent Probe for Hg2+ Based on Deselenation-Hydrolysis-Elimination Strategy | Inorganic Chemistry pubs.acs.org/doi/10.1021/... Ren, Zhu, and Zhang @InorgChem #mercury #ratiometric #colorimetric #deselenation #hydrolysis

1/8 🧵 Update on the Pocket #Spectrometer project. Been working on upgrading from the AS7341 to AS7343 sensor. The #AS7341 worked well but only had 9 channels. The #AS7343 offers 12 channels which should be better for #colorimetric analysis. #OpenSource 💡

There are two #methods for #measuringpH: #colorimetric methods using indicator solutions or papers, and the more accurate #electrochemical methods using electrodes and a millivoltmeter (pH meter).

There are two #methods for #measuringpH: #colorimetric methods using indicator solutions or papers, and the more accurate #electrochemical methods using electrodes and a millivoltmeter (pH meter).