Determination of microgram quantities of some phenylmercury compounds and their separation from inorganic mercury salts

1960 ◽  
Vol 174 (1) ◽  
pp. 48-50 ◽  
Author(s):  
E. Hoffmann
Keyword(s):  
Inorganic Mercury ◽  
Mercury Salts

Fast method for the simultaneous determination of monomethylmercury and inorganic mercury in rice and aquatic plants

Talanta ◽  
2018 ◽  
Vol 176 ◽  
pp. 102-107 ◽  
Author(s):  
María Jiménez-Moreno ◽  
Miguel Ángel Lominchar ◽  
María José Sierra ◽  
Rocío Millán ◽  
Rosa Carmen Rodríguez Martín-Doimeadios
Keyword(s):  
Simultaneous Determination ◽  
Aquatic Plants ◽  
Inorganic Mercury ◽  
Fast Method

Non-chromatographic separation and determination of thimerosal and inorganic mercury in vaccines by Fe3+-induced degradation with cold vapor atomic fluorescence spectrometry

2018 ◽  
Vol 10 (18) ◽  
pp. 2144-2150 ◽  
Author(s):  
Qi Xu ◽  
Zhenhua Wang ◽  
Linghe Jin ◽  
Peng Liu ◽  
Yuan Tian ◽  
...  
Keyword(s):  
Chromatographic Separation ◽  
Inorganic Mercury ◽  
Elemental Mercury ◽  
Fluorescence Spectrometry ◽  
Atomic Fluorescence Spectrometry ◽  
Atomic Fluorescence ◽  
Cold Vapor

By adding Fe3+ into an HCl carrier, thimerosal can be transformed into elemental mercury cold vapor in the presence of KBH4 and detected by AFS.

CHEMICAL CONTROL OF SNOW MOULD OF GRASSES AND ALFALFA IN ALBERTA

1961 ◽  
Vol 41 (4) ◽  
pp. 744-750 ◽  
Author(s):  
J. B. Lebeau ◽  
M. W. Cormack ◽  
E. W. B. Ward
Keyword(s):  
Mercuric Chloride ◽  
Chemical Control ◽  
Inorganic Mercury ◽  
Sodium Tetraborate ◽  
Turf Grass ◽  
Mercurous Chloride ◽  
Margin Of Safety ◽  
Mercury Salts ◽  
Early Fall ◽  
Snow Mould

Chemical tests for control of snow mould of turf grass and alfalfa were conducted at Edmonton from 1945 to 1957. Of a number of chemicals tested, inorganic mercury salts provided the best control. Mercuric chloride was more effective than mercurous chloride for treating alfalfa but no difference in control was observed from the two chemicals on turf grass. Sodium tetraborate sprays applied to the foliage of alfalfa in early fall gave remarkable control of the disease but are not recommended because of the low margin of safety from boron injury.

Simultaneous determination of mercury speciation in biological materials by GC/CVAFS after ethylation and room-temperature precollection

1994 ◽  
Vol 40 (4) ◽  
pp. 602-607 ◽  
Author(s):  
L Liang ◽  
N S Bloom ◽  
M Horvat
Keyword(s):  
Simultaneous Determination ◽  
Room Temperature ◽  
Detection System ◽  
Inorganic Mercury ◽  
Biological Materials ◽  
Atomic Fluorescence Spectrometry ◽  
Atomic Fluorescence ◽  
Monomethyl Mercury ◽  
Isothermal Gas

Abstract We developed a method for the simultaneous determination of monomethyl mercury (MMHg), inorganic mercury [Hg(II)], and total mercury (THg) in biological materials. A variety of biological materials can be digested in methanolic KOH solution. The MMHg and Hg(II) present are converted to volatile ethyl derivatives, methylethyl mercury and diethyl mercury, by an aqueous-phase ethylation reaction with sodium tetraethylborate. The ethyl derivatives are precollected onto a trapping column at room temperature, in case of disconnection with the separation/detection system, and then thermally desorbed into a packed isothermal gas chromatography (GC) column. Eluted organo-Hg compounds from the GC column are decomposed into Hg0, and detection is completed by cold vapor atomic fluorescence spectrometry (CVAFS). Pure standard solutions can be used for calibration. The sum of MMHg and Hg(II) obtained by this method equals the THg value obtained by digestion with HNO3 and H2SO4, reduction with SnCl2, and single-stage amalgamation/CVAFS for all biological materials studied. Absolute detection limits are 0.6 pg and 1.3 pg of Hg as MMHg and Hg(II), respectively, corresponding to 0.3 ng and 0.6 ng/g (wet) of sample.

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