caa a22 4500 46574947X CHVBK 20180323111830.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF00324019 doi (NATIONALLICENCE)springer-10.1007/BF00324019 Spectrophotometric determination of hydrogen cyanide in air using phloroglucinol [Elektronische Daten] [Sulbha Amlathe, V. Gupta] Summary: A spectrophotometric determination of hydrogen cyanide in air is described. Hydrogen cyanide from air is collected in dilute sodium hydroxide and then reacted with pyridine forming glutaconic aldehyde. The glutaconic aldehyde thus formed is subsequently coupled with aqueous phloroglucinol solution to form a polymethine red-violet dye having absorbance maxima at 540 nm. The colour system obeys Beer's law in the range of 0.45 to 3.6 mg/m3 of hydrogen cyanide (0.4 to 3.2 μg/g). Collection efficiency of absorbing solution, molar absorptivity and Sandell's sensitivity have been evaluated. All other important analytical parameters have been studied and applied for the determination/detection of hydrogen cyanide in air samples and cigarette smoke. Springer-Verlag, 1990 Amlathe Sulbha Department of Chemistry, Ravishankar University, 492 010, Raipur M.P., India aut Gupta V. Department of Chemistry, Ravishankar University, 492 010, Raipur M.P., India aut Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/5(1990-01-01), 615-617 0937-0633 338:5<615 1990 338 216 https://doi.org/10.1007/BF00324019 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00324019 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Amlathe Sulbha Department of Chemistry, Ravishankar University, 492 010, Raipur M.P., India aut NATIONALLICENCE 700 1- Gupta V. Department of Chemistry, Ravishankar University, 492 010, Raipur M.P., India aut NATIONALLICENCE 773 0- Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/5(1990-01-01), 615-617 0937-0633 338:5<615 1990 338 216 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer