FIELD: chemistry.
SUBSTANCE: method of sampling air for quantitative determination of fluorine involves taking samples on a solid and liquid absorbent, wherein the solid sorbent used is granular sodium fluoride and the liquid absorbent used is a composite chemical: glycerin, buffer solution with pH 4.5, 0.643% solution of alizarin complexone, 0.72% solution of lanthanum nitrate, distilled water.
EFFECT: invention enables to separate hydrogen fluoride and hydrofluoric acid from fluorine during sampling and increases accuracy of determining fluorine.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF HYDROGEN FLUORIDE DETERMINATION IN GASES | 0 |
|
SU712383A1 |
| INDICATOR COMPOSITION FOR DETERMINING HYDROGEN FLUORIDE IN GASEOUS PHASE | 1995 |
|
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| METHOD OF DETERMINATION OF ARSINE MICROCONTENT IN GASES | 1994 |
|
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| METHOD OF DETERMINATION OF DIMETHYLFORMAMIDE IN AIR | 1992 |
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| ENZYMATIC METHOD OF ASSESSING INTEGRAL TOXICITY OF AIR | 2019 |
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|
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|
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| METHOD FOR DIFFERENTIAL ASSESSMENT OF PREDOMINANT TYPE OF COMBINED AEROGENIC EFFECT OF CHEMICALS: ALUMINUM OXIDE, BENZ(A)PYRENE AND HYDROFLUORIDE, ON HEALTH OF CHILDREN AGED 4-7 YEARS OLD | 2023 |
|
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| METHOD FOR DETECTING METHYL-PHENYL- CARBONYL IN AIR | 1998 |
|
RU2141111C1 |
