chemical indicator


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chemical indicator

[′kem·i·kəl ′in·də‚kād·ər]
(analytical chemistry)
A substance whose physical appearance is altered at or near the end point of a chemical titration.
A substance whose color varies as the concentration of hydrogen ions in the solution to which it is added varies. Also known as indicator.
References in periodicals archive ?
A chemical indicator for controlling the process of sterilization by vapors of hydrogen peroxide in a low-temperature sterilizer amsco v-pro-1 (internal) grade 4
The device has built in chemical indicator and electronic barcode data, and it operates with easy single-hand activation.
Saif's invention "Baseer" reads Arabic text and converts itin to Braille, while Yazi's prototype, named "foodi", involved a chemical indicator to determine whether stored fish is safe for consumption.
Class I chemical indicator or autoclave tape (3M[TM] Comply[TM] Steam Indicator Tapes) was attached inside and outside of each waste bag.
Trimethylamine, a chemical indicator of seafood spoilage, was not found during the gas chromatographic analysis of the volatile compounds in any of the treatments.
Bone quality is measured by both density and turnover, and serum parathyroid hormone (PTH) levels were seen as significantly correlated with lower levels of osteocalcin - a chemical indicator of bone turnover - in both men and women with type 2 diabetes.
Bone quality is measured by both density and turnover, and serum parathyroid hormone (PTH) levels were seen as significantly correlated with lower levels of osteocalcin-a chemical indicator of bone turnover-in both men and women with type 2 diabetes.
another candidate chemical indicator of human sewage contamination.
To which colour does an alkali change the chemical indicator litmus paper?
The bottle contains a dried mixture of all of the nutrients required to help the bacteria grow ( under conditions similar to those in the human gut( along with a chemical indicator that changes colour to black if E.
Saliva thiocyanate: a chemical indicator of cigarette smoking in adolescents.
One chemical indicator and one electronic indicator had data readings outside of the published product specifications, which when used in the field, could lead to false negatives.

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