Tag: The Journal of Laboratory and Clinical Medicine
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Litmus paper and other pH indicators
To many a physician the word litmus brings back unpleasant memories from medical school, something to do with Bunsen burners, incomprehensible lectures on acid-base balance, or experiments going wrong and exploding in the chemistry lab. Litmus itself is a mixture of organic substances obtained from lichens and used as an acid-base indicator—even in nature, such…