Examining the analytical capabilities of a desolvating microconcent nebulizer for inductively coupled plasma-mass spectrometry

Trends in instrumentation and data processsing in ICP-AES : Plenary Lecture

“…50 Because the volume of the evaporation chamber is then very small, it becomes possible to incorporate the chamber in the base of the torch, so as to obtain a torch integrated sample introduction system (TISIS). Preliminary investigations indicated that the analytical results were similar to those obtained with a separated chamber, using a power of 1400 W and a carrier gas flow rate of 0.7 L min 21 . For delivery rates up to 40 mL min 21 , no droplets deposit was observed.…”

“…For delivery rates up to 40 mL min 21 , no droplets deposit was observed. When working in the range 40-200 mL min 21 , there was a need for a drain, but no plasma degradation was observed. Signals, RSDs, LODs, Mg II/Mg I ratio were found to be similar to those obtained with double pass and cyclonic spray chambers.…”

“…Conventional nebulizers such as the concentric nebulizers, the cross-flow nebulizers, the high-salt concentration tolerant nebulizers (vee-and conespray types) are usually used with a solution delivery rate in the range 1-3 ml min 21 . A signal plateau is then obtained.…”

“…However, it is possible to reduce significantly the delivery rate, i.e. below 0.2 ml min 21 , to reduce sample consumption. A micronebulizer is then a nebulizer that is still efficient for delivery rates below 0.2 ml min 21 , with the possibility of working with rates as low as 5-10 ml min 21 .…”

“…below 0.2 ml min 21 , to reduce sample consumption. A micronebulizer is then a nebulizer that is still efficient for delivery rates below 0.2 ml min 21 , with the possibility of working with rates as low as 5-10 ml min 21 . Reduction of sample consumption, either in terms of volume or in terms of rate, may be beneficial when the amount of sample is limited such as in biology or forensic sciences, or with costly materials.…”