|
|
|
CONTACT US
|
 |
Shandong haiqiang environmental technology co., LTD.
24 hour business: 18553153357
Telephone: 0531-88816910
Fax: 0531-88809505
Email: sdhaiqiang@163.com
Website: unifitpv.cn
Address: no.19 huaneng road, lixia district, jinan city, shandong province |
|
|
|
|
|
Low background αβ measuring instrument for water sample production process |
| Date：2022-9-23 8:17:17 Author
：admin
Hits：2628 |
1. Keep the water sample in the proportion of 1L water.
2. Put 1L of water into a beaker and evaporate on a adjustable electric stove.
3. After the water sample is evaporated to the remaining 50ml-100ml or so, take it off and import it into the evaporation dish (the constant weight of the evaporation dish in advance).
4. Scrape the residual sample off the beaker wall with a glass rod, clean it with distilled water and pour it into the evaporation dish.
5. Put the evaporation dish together with the sample in the drying oven or under the infrared lamp to evaporate the remaining water until the evaporation is clean. Next, put the evaporation dish together with the sample in the horse volt oven and bake at 350° for 1 hour.
6. Weigh the sample with a balance.
7. Take 50-160mg sample and put it into the sample plate (the sample plate should be cleaned and dried in advance).
8. Readd alcohol to the weighed sample and evenly spread the sample on the sample plate.
9. Place the sample and sample tray under the drying oven and bake for half an hour
10. In the instrument measurement at http://unifitpv.cn/ |
|
|
