Flame Spectra of Twenty Metals Using Recording Flame Spectrophotometer

Flame Spectrophotometric Study of Silver

“…per % T in oxygenhydrogen. These emission sensitivities are considerably less than those reported by previous workers (8,10). Rathje (8) and Whisman and Eccleston (10) employed wider slit widths.…”

“…The slit width employed was 0.030 mm., which corresponds to a band width of 0.17 mp at one half the maximum intensity. The spectral band width is narrower than that used by Whisman and Eccleston (10), which was 0.30 mp, and considerably narrower than those used by Rathje (8) and by Pungor and Konkoly-Thege (7), which were 1.2 and 2.9 mp, respectively.…”

Limited Area Flame Spectrometry. Chemiluminescence.

“…Manganese. A good example of the more complex spectra obtained with chemiluminescent techniques, compared to that shown by Watanabe (24) and Whisman (25), is given in Figures 5 to 9. A total of about 50 definite peaks and 10 molecular band heads are shown for manganese.…”

A Flame Spectrophotometric Method for Sodium, Potassium, and Calcium in Fuel Oil.

“…Several flame spectrophotometric methods for determining these metals have been described in the literature. These methods usually involve ashing of the sample and subsequent redissolving of the ash in water (7). These methods require a large amount of time and are subject to error from sample contamination or volatilization ( ).…”

“…These methods require a large amount of time and are subject to error from sample contamination or volatilization ( ). Direct flame spectrophotometric methods have been applied to the determination of additive elements in lubricating oils (1,4) and various metals in crude oil (7). This research was conducted to develop a rapid and accurate method of determining sodium, potassium, and calcium in distillate fuel oils.…”