title: New approach to the fast screening of plant oil samples for F-, Cl-, Br- and S-organic compounds on the trace level.
abstract: The fast method of the simultaneous determination of F(-), Cl(-), Br(-) and SO4(2-) anions in the deionized water on the trace level by ion chromatography using thorough cleaning of respective water containers, 10 μM NaHCO3 water solution as eluent, short Metrohm (50 × 4 mm) separation column and a large water volume injection is proposed. Calculated detection limits are 10(-9)-10(-8)% depending on the element. The method for the fast screening of plant oil samples for the total fluorine-, chlorine-, bromine- and sulfur-organic compounds content (calculated for the respective elements) on the trace level is developed. It is based on the high temperature combustion of oil sample in oxygen flow, absorption of the conversion products in deionized water and whole absorbate volume analysis for F(-), Cl(-), Br(-) and SO4(2-) anions, corresponding to the respective elements, using the developed method of these anions analysis by ion chromatography. The samples of soya, olive, sunflower and cotton seed oil were analyzed. The method detection limits (for 1mg sample) were 2 × 10(-6)%, 2 × 10(-6)%, 5 × 10(-6)% and 5 × 10(-6)% for fluorine, chlorine, bromine and sulfur, respectively. The relative standard deviation was ≤ 15%. The method gives the compressed information about the total content of all target and nontarget fluorine-, chlorine-, bromine- and sulfur-organic compounds in plant oils.
authors.affiliation: Lomonosov Moscow State University, Chemistry Department, Analytical Chemistry Division, GSP-1, Leninskye gory, 1, building 3, Moscow 119991, Russian Federation.
authors.forename: M E
authors.initials: ME
authors.lastname: Chivarzin
authors.affiliation: Lomonosov Moscow State University, Chemistry Department, Analytical Chemistry Division, GSP-1, Leninskye gory, 1, building 3, Moscow 119991, Russian Federation. Electronic address: revelsky@environment.chem.msu.ru.
authors.forename: I A
authors.initials: IA
authors.lastname: Revelsky
authors.affiliation: Lomonosov Moscow State University, Chemistry Department, Analytical Chemistry Division, GSP-1, Leninskye gory, 1, building 3, Moscow 119991, Russian Federation.
authors.forename: A V
authors.initials: AV
authors.lastname: Nikoshina
authors.affiliation: Lomonosov Moscow State University, Chemistry Department, Analytical Chemistry Division, GSP-1, Leninskye gory, 1, building 3, Moscow 119991, Russian Federation.
authors.forename: A N
authors.initials: AN
authors.lastname: Buldyzkova
authors.affiliation: Lomonosov Moscow State University, Chemistry Department, Analytical Chemistry Division, GSP-1, Leninskye gory, 1, building 3, Moscow 119991, Russian Federation.
authors.forename: D A
authors.initials: DA
authors.lastname: Chepeliansky
authors.affiliation: Lomonosov Moscow State University, Chemistry Department, Analytical Chemistry Division, GSP-1, Leninskye gory, 1, building 3, Moscow 119991, Russian Federation.
authors.forename: A I
authors.initials: AI
authors.lastname: Revelsky
authors.affiliation: Lomonosov Moscow State University, Chemistry Department, Analytical Chemistry Division, GSP-1, Leninskye gory, 1, building 3, Moscow 119991, Russian Federation.
authors.forename: A K
authors.initials: AK
authors.lastname: Buriak
mesh_terms: D001966:Bromine / Q000737:chemistry; D002623:Chemistry Techniques, Analytical / Q000379:methods*; D002713:Chlorine / Q000737:chemistry; D004785:Environmental Pollutants / Q000032:analysis* / Q000737:chemistry*; D005461:Fluorine / Q000737:chemistry; D057230:Limit of Detection; D009930:Organic Chemicals / Q000032:analysis* / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry; D010938:Plant Oils / Q000737:chemistry*; D013431:Sulfates / Q000737:chemistry; D013696:Temperature; D013997:Time Factors; D014867:Water / Q000737:chemistry
chemical_list: D004785:Environmental Pollutants; D009930:Organic Chemicals; D010938:Plant Oils; D013431:Sulfates; D014867:Water; D005461:Fluorine; D002713:Chlorine; D010100:Oxygen; D001966:Bromine
keywords: Anions; Fast screening of samples; Ion chromatography; Plant oils; Total content of F-, Cl-, Br- and S-organic compounds