Hanna-instruments HI 93414 Manuel d'utilisateur télécharger pdf (Page 8)

Therefore, the concentration “c” can be calculated from the absorbance of the substance as the other

factors are known.

Photometric chemical analysis is based on the possibility to develop an absorbing compound from a

specific chemical reaction between sample and reagents. Given that the absorption of a compound

strictly depends on the wavelength of the incident light beam, a narrow spectral bandwidth should be

selected as well as a proper central wavelength to optimize measurements.

The measurement process is carried out in two phases: first the instrument is zeroed and then the

actual measurement is performed.

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 51 52

Pas de commentaire

Hanna-instruments HI 93414 Manuel d'utilisateur Page 8