FIELD: physics.
SUBSTANCE: spectrophotometre has a source (6) of radiation at several wavelengths in the direction of a specimen on a holder (4) and device (8) for detecting radiation after interaction with the specimen. The said specimen holder (4) enables to obtain several different path lengths for the flux radiated through the specimen. A computer device (10) receives an intensity-dependent input signal from the detection device (8), and is used to store intensity values of a defined flux of radiation which indicates the wavelength for two or more path lengths of several different path lengths, and for calculating a value which depends on the ratio of indexed intensity values for each of the two path lengths which can determine presence of the substance sought for in the analysed substance.
EFFECT: higher measurement accuracy.
7 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| APPARATUS AND METHOD FOR SPECTROPHOTOMETRIC ANALYSIS | 2006 |
|
RU2437719C2 |
| SYSTEM AND METHOD OF INVESTIGATION BY LIBS AND IR-SPECTROSCOPY OF ABSORPTION | 2013 |
|
RU2616777C1 |
| METHOD OF DETERMINING CONCENTRATION OF CELLS IN SUSPENSION OF MICROALGAE | 2019 |
|
RU2732203C1 |
| DEVICE MEASURING LUMINESCENCE OF BIOLOGICAL SPECIMENS | 2000 |
|
RU2190208C2 |
| PHOTOCOLORIMETER-REFLECTOMETER | 2001 |
|
RU2187789C1 |
| METHOD FOR OPTICAL REMOTE DETECTION OF COMPOUNDS IN MEDIUM | 2008 |
|
RU2478192C2 |
| METHOD TO MEASURE CONCENTRATION OF URANIUM IN AQUEOUS SOLUTION BY METHOD OF SPECTROPHOTOMETRY | 2011 |
|
RU2573445C2 |
| SYSTEMS AND METHODS FOR BIOLOGICAL ANALYSIS | 2016 |
|
RU2702577C2 |
| METHOD OF DETERMINING OPTICAL LOSSES IN SUBSTANCE | 0 |
|
SU1696895A1 |
| MATERIAL QUALITY DETERMINATION METHOD | 0 |
|
SU911250A1 |
