A POSSIBILITY OF ELEMENT-SPECIFIC DETECTION IN HPLC BY MEANS OF MIP AES COUPLED WITH HYDRAULIC HIGH-PRESSURE NEBULIZATION

An interface for coupling hydraulic high pressure nebulization (HHPN) with microwave induced plasma (MIP) atomic emission spectrometry (AES) is described. An appropriate spray chamber and aerosol desolvation sy stem has been constructed for matching the HHPN generated aerosol flow with the loading capacity of toroidal argon and cylindrical helium MI P sources. The system has been optimized for aqueous solutions. Nanogr am amounts of metals and non-metals could be detected by the HHPN-MIP- AES technique developed. The HHPN devices are directly compatible with HPLC solvent flow, therefore they can be directly coupled with HPLC s eparations in aqueous media.