ICP-AES analysis of gases in energy technology and influence of molecular additives on argon ICP

Metal and metalloid determination in biodiesel and bioethanol

“…Several authors reported decreases in this parameter as compared to aqueous solutions. 17,19,22,23,[26][27][28][29] However, a maximum pattern in the excitation temperature was reported as the ethanol content increased. 23,30 A change in the hydrogen content can be claimed in order to try to explain the eventual increase in plasma fundamental parameters found when introducing ethanol.…”

“…197 Polyatomic interference occurs in ICP-MS when ethanol is injected into the plasma. For example, 12 C 2 + , 12 C 14 N + , 13 C 14 N + , 12 C 16 O + , 13 C 16 O + , 12 C 17 O + , 40 Ar 12 C + , and 40 Ar 13 C + may interfere with 24 Mg + , 26 Mg + , 27 Al + , 28 Si + , 29 Si + , 52 Cr + and 53 Cr + determination, respectively. 198 Recently, Neves et al 190 veried that ow-rates below 112.5 mL min À1 were insufficient to remove the formed carbon compounds when ethanol concentration was higher than 80%.…”

Online Detection of Selenium and Its Retention in Reducing Gasification Atmosphere

“…Establishing a setup allowing for online measurement of H 2 Se is challenging, because the direct introduction of such a gas mixture into an ICP-MS for Se determination can lead to substantial material loss on the tubing walls and severe matrix effects thereby hindering quantification . Indeed, both H 2 − and H 2 O , as well as carbon species − can change the plasma conditions and hence affect the Se sensitivity and polyatomic interferences. To tackle these problems, several combinations of gas sampling and calibration strategies were considered.…”

Online combustion followed by carbon dioxide removal: evaluation of a new approach for the analysis of volatile organic substances by inductively coupled plasma optical emission spectrometry

“…It is important to mention that any throttling of the gas stream had to be avoided as this would have resulted in a change of the membrane desolvator's pressure balance. Due to the alterations of the plasma's thermal conductivity 30 and the resulting changes in the ICP's excitation conditions any plasmabased spectroscopic quantication attempt for oxygen and carbon dioxide must be considered unreliable in the context of this work. Therefore, alternative spectroscopic techniques were used with dichloromethane as the representative test solvent.…”