The mode of action of ultraviolet radiation in producing sterilization

✍ Scribed by W.E. Burge

• Publisher: Elsevier Science
• Year: 1916
• Tongue: English
• Weight: 103 KB
• Volume: 182
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(16)90867-6

✦ Synopsis

oxygen liberated in ten minutes was determined. Ten such determinations were made with an average of I i8 C.C. of oxygen for the determinations. The smallest amount obtained in these determinations was i I2 c.c. of oxygen, the largest amount i26 c.c. Similarly, 3 ° milligrammes of a moth were introduced into 3 ° c.c. of hydrogen peroxide and the amount of oxygen liberated determined. The amount of oxygen liberated by the moth was 8 c.c. of oxygen per 3 ° milligrammes of material. Determinations were also made using honey-bees, bumble-bees and butterflies. The amount of oxygen liberated in none of these determinations exceeded 25 c.c. of oxygen per 3 ° milligrammes of material. Thirty milligrammes of the luminous part of fire-flies were cut off and ground up. This part liberated 145 c.c. of oxygen from 3 ° c.c. of hydrogen peroxide, whereas the same amount of the ground-up non-luminous part of the fire-flies liberated t 15 c.c. of oxygen from hydrogen peroxide.

Conclusions.--From the foregoing experiments it may be