FIELD: chemistry.
SUBSTANCE: method is based on exposing the surface of an analysed sample to focused laser radiation with pulse energy of 0.3-1.2 J and duration of 120 mcs. Laser spark luminescence analysis is carried out, which enables to pick out spectral lines of the vapour of the determined elements and identify spectral lines. Each of the elements is determined using experimentally determined most sensitive emission lines of waves in the following ranges: for lead 400-410 nm, cadmium 210-220 nm, copper 220-230 nm, zinc 200-210 nm.
EFFECT: improved method.
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF LASER-SPARK EMISSION DETERMINATION OF ARSENIC IN FOOD RAW MATERIAL AND FOODSTUFF | 2013 |
|
RU2531026C1 |
| METHOD FOR LASER-SPARK EMISSION DETERMINATION OF LANTHANUM, CERIUM, PRASEODYMIUM AND NEODYMIUM IN METAL ALLOYS AND POWDERS | 2013 |
|
RU2548584C2 |
| METHOD FOR LASER-SPARK EMISSION DETERMINATION OF BERYLLIUM IN METAL ALLOYS AND POWDERS | 2015 |
|
RU2583858C1 |
| LASER-SPARK SPECTRUM ANALYZER | 2000 |
|
RU2163370C1 |
| METHOD AND DEVICE FOR SPECTRAL ANALYZING OF MATERIAL ELEMENT COMPOSITION | 1991 |
|
RU2007703C1 |
| METHOD AND APPARATUS FOR ATOMIC EMISSION SPECTRAL ANALYSIS OF NANO-OBJECTS | 2014 |
|
RU2573717C2 |
| METHOD FOR LASER SPARK SPECTRAL ANALYSIS FOR DETERMINATION OF SUBSTANCE SAMPLE ULTIMATE COMPOSITION | 2010 |
|
RU2436070C1 |
| EMISSION ANALYSIS OF FLUIDS COMPOSITION | 2012 |
|
RU2487342C1 |
| METHOD OF EMISSION ANALYSIS FOR DETERMINING ELEMENTARY COMPOSITION USING DISCHARGE IN LIQUID | 2008 |
|
RU2368895C1 |
| METHOD FOR DETERMINING TRACE CONSTITUENTS BY LASER-SPARK EMISSION SPECTROSCOPY | 2013 |
|
RU2550590C2 |
