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Measuring herbicides in drinking water

Measuring herbicides in drinking water

It’s springtime in the northern hemisphere, and with rising temperatures comes increased use of herbicides on agricultural crops and in public spaces. In March 2015, the International Agency for Research on Cancer (IARC) published a report which stated that one such...

Photometric complexometric titration

Photometric complexometric titration

…and how to choose the right wavelength for indicationComplexometric titration was discovered in 1945 when Gerold Schwarzenbach observed that aminocarboxylic acids form stable complexes with metal ions, which can change their color by addition of an indicator. From...

A History of Chemistry – Part 4

A History of Chemistry – Part 4

This article is the final installment in our four-part series on the history of chemistry. Did you miss the others? Don’t worry – you can find them all here:The industrialization of electrochemistry Michael Faraday (1791–1867) had a modest upbringing. He was 14 years...

A History of Chemistry – Part 3

A History of Chemistry – Part 3

This article is the third in our four-part series on the history of chemistry. Missed the first two? Don’t worry – you can read both of them here:Chemistry and society: An explosive pair It is the early 19th century, and industrialization in Europe is in full swing....

A History of Chemistry – Part 2

A History of Chemistry – Part 2

This article is the second in our four-part series on the history of chemistry. Missed the first one? Don’t worry – you can read it here:  The return to atomism and the rise of modern chemistry In 1808, John Dalton (1766–1844) published his book entitled «A New System...

FAQ: All about pH calibration

FAQ: All about pH calibration

In a recent blog post, we discussed how to avoid the most common mistakes in pH measurement:Here, I want to discuss in a bit more detail how you can correctly calibrate your pH electrode and what you have to consider to obtain the best measurement results afterwards...

A History of Chemistry – Part 1

A History of Chemistry – Part 1

Chemistry – a natural science? For a long time, chemistry was a discipline which lagged behind other natural sciences. The human desire for cheating death and overcoming poverty was just too strong for people to abandon the promises of alchemy and embark into the...

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