| 摘要 |
Method for photo-colorimetric determination of nickel in welding aerosol includes sampling on analytical filters, aerosol chemical acetyl-cellulose, with photo-colorimetric determination of nickel in presence of oxidizer. Filter is dissolved in concentrated hydrochloric acid at heating and acetone, with addition of sodium hydroxide for neutralization of hydrochloric acid. As oxidizer one uses solution of iodine and performs measurements of optical density. |
