Conformational studies by dynamic NMR. 33. Possible applications of the magic angle spinning technique for identifying meso and racemic conformers in the solid state
[EN] METHOD FOR DETERMINING AUTHENTICITY AND ADULTERATION OF MARKED PETROLEUM HYDROCARBONS<br/>[FR] PROCÉDÉ PERMETTANT DE DÉTERMINER L'AUTHENTICITÉ ET L'ADULTÉRATION D'HYDROCARBURES PÉTROLIERS MARQUÉS
申请人:SICPA HOLDING SA
公开号:WO2021110525A1
公开(公告)日:2021-06-10
The present invention provides a method for determining the authenticity of a petroleum hydrocarbon allegedly comprising at least one specific chemical marker, as well as a method for determining adulteration of a petroleum hydrocarbon marked with at least one specific chemical marker. The methods claimed and described herein rely upon the use of specific chemical markers in combination with laser ionization at a wavelength of between about 300 nm and about 370 nm coupled with ion mobility spectrometry or with mass spectrometry.
[EN] METHOD OF MARKING A PETROLEUM HYDROCARBON<br/>[FR] PROCÉDÉ DE MARQUAGE D'UN HYDROCARBURE DE PÉTROLE
申请人:SICPA HOLDING SA
公开号:WO2021110526A1
公开(公告)日:2021-06-10
The present invention relates to a method of marking a petroleum hydrocarbon by adding to and uniformly mixing with said petroleum hydrocarbon a chemical marker of general formula (I) wherein two of the residues R1 – R10 are independently of each other selected from C1-C4-alkoxy, and eight of the residues R1 – R10 are independently of each other selected from the group consisting of hydrogen and C1-C4-alkyl, as well as to a composition of a petroleum hydrocarbon comprising a petroleum hydrocarbon and at least one chemical marker of general formula (I). The presence and concentration of the chemical marker of general formula (I) in the composition of the petroleum hydrocarbon can be advantageously determined by laser ionization coupled with mass spectrometry or by laser ionization coupled with ion mobility spectrometry.
Conformational studies by dynamic NMR. 33. Possible applications of the magic angle spinning technique for identifying meso and racemic conformers in the solid state