Determination of inorganic and organomercury compounds by high-performance liquid chromatography-inductively coupled plasma emission spectrometry with cold vapour generation

Metals in River Water

“…Krull et al 582 have described a procedure for the determination of inorganic and organomercury compounds using high-performance liquid chromatography with an inductively coupled plasma emission spectrometric detector with cold vapor generation. In this method, postcolumn cold vapor generation was used to obtain improved detection limits.…”

Hybrid Methods of Speciation

“…For speciation, the method tends to be applied to the effluent from an HPLC column in order to improve sensitivity. For example, Krull et al (1985) used the technique to improve HPLC-ICPAES detection by three to four orders of magnitude to give detection limits in the range 32-62 ppb. Hydride generation can be used for those elements that form volatile hydrides including arsenic, antimony and selenium.…”

Simple methodology for methylmercury and inorganic mercury determinations by high-performance liquid chromatography–cold vapour atomic fluorescence spectrometry

“…The analytical performance of the methodology proposed in this work was evaluated by the analysis of HPLC-UV-VIS [38,39] 0.10-25 HPLC-CV-AAS [15,40] 80 × 10 −3 to 1.0 HPLC-CV-AAS a [41,42] 20 × 10 −3 to 0.10 HPLC-CV-AFS [16] 20 × 10 −3 HPLC-CV-AFS a [17] 8.0 × 10 −3 HPLC-ACP-AES [19] 70 HPLC-ICP-AES [18] 46 × 10 3 HPLC-CV-ICP-AES [18] 7.4-9.4 HPLC-CV-MIP-AES [43] 35 × 10 −3 HPLC-DIN b -ICP-MS [44] 7.0 × 10 −3 HPLC-USN c -ICP-MS [45] 0.14 HPLC-PN d -ICP-MS [23] 0.70 HPLC-CV-PN d -ICP-MS [13,23] 3.0 × 10 −3 to 60 × a certified reference sediment (CRM 580) using alkaline digestion. Several works have shown concern over the possible formation of MeHg artefacts during certain analytical procedures, such as distillation [46,47] and alkaline dissolution.…”

“…Coupled with GC, a large variety of mercury detection and quantification methods have been used: electron capture detection (ECD) [1]; microwave induced plasma (MIP) [2][3][4]; atomic fluorescence spectrometry (AFS) [5][6][7]; atomic absorption spectrometry (AAS) [8,9]; inductively coupled plasma-mass spectrometry (ICP-MS) [10,11]; and glow discharge atomic emission spectrometry (GD-AES) [12]. Coupled with HPLC, the detection and quantification methods for mercury speciation have included: ICP-MS [13]; photometry [14]; cold vapour atomic absorption spectrometry (CV-AAS) [15]; cold vapour atomic fluorescence spectrometry (CV-AFS) [16,17]; atomic emission spectrometry (AES) [18,19]; and atmospheric pressure ionisation mass spectrometry (API-MS) [20]. Although GC has been the most widely used separation technique in mercury speciation studies, it is necessary to perform column passivation by repeated mercury salt injections [21] and derivatisation of mercury compounds to form volatile species [22].…”