| 摘要 |
FIELD: medicine.SUBSTANCE: invention described a method for determining Ti, Al in the cardiovascular tissues, involving placing a tissue sample into a container with added nitric acid, and keeping for 3 hours at 75°C; that is followed by adding hydrogen peroxide, keeping for 2 hours at the same temperature, adding a new portion of nitric acid, keeping for 2 hours at temperature 110°C, adding fluohydric acid and keeping for 18 hours at 20°C, heating for 6 hours at 75°C and placing into a microwave, boiling off and measuring by inductively coupled plasma mass spectrometry at the following ration of the ingredients, wt %: HNO35 wt %, HO5 wt %, HF 13.3 wt %, deionised water - the rest.EFFECT: higher accuracy of determining.1 ex, 1 tbl |
