Structural determination of zinc dithiophosphates in lubricating oils by gas chromatography–mass spectrometry with electron impact and electron-capture negative ion chemical ionization

Becchi, Michel; Perret, Fréderic; Carrazé, Bernadette; Beziau, Jean-François; Michel, J.P.

doi:10.1016/s0021-9673(00)00974-2

Cited by 21 publications

(15 citation statements)

References 6 publications

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“…Besides, synthesis yield is also influenced by synthesis temperature and 90 °C is the optimum temperature for ZDTP 16 synthesis reaction. According to Becchi et al [5] if the reaction temperature used is more than 100 °C, ZDTP product will be decomposed, hence, the yield will be low. The obtained physical form of ZDTP 16 product is like congestion such as porridge with Zn average content of 6.06% which is higher than its theoretical calculation that is 5.35%.…”

Section: Resultsmentioning

confidence: 99%

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Thermodynamic and Kinetic Study of Zinc bis-(Dipalmithyl Dithiophosphate) Activity as Anti-Corrosion Additive-Fatty Acid Based Through Potentiodynamic Polarization Technique

et al. 2018

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Section: Resultsmentioning

confidence: 99%

“…Sample of coordination complex compound functioned as corrosion inhibitor is ZDTP [3]. In the beginning, numerous ZDTPs used as lubricant additive at automotive industries [5], but, then, it had been known that this compound also may act as anticorrosion [6].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic and Kinetic Study of Zinc bis-(Dipalmithyl Dithiophosphate) Activity as Anti-Corrosion Additive-Fatty Acid Based Through Potentiodynamic Polarization Technique

et al. 2018

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“…115 PFB derivatives were used to identify zinc dialkyl-and diarylthiophosphate antiwear engine oil additives by EI-GC/MS and NICI-GC/MS. 116 Reaction is accomplished by keeping a mixture of the dithiophosphate extract with a solution of tetramethylammonium hydroxide and PFB bromide in the ultrasonic bath for 30 min:…”

Section: Some Common Analytical Applications Of Alkylationmentioning

confidence: 99%

Derivatization in Mass Spectrometry– 3. Alkylation (Arylation)

Halket

Заикин

2004

Eur J Mass Spectrom (Chichester)

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The review is devoted to alkylation (arylation) as a widely employed derivatization procedure for the protection of OH (carboxylic acids, phosphoric acids, sulfonic acids, alcohols, polyols, phenols, enols), SH (thiols) and NH (amines, amides) groups in order to increase volatility, to improve the chromatographic properties and, if possible, mass spectral properties of derivatives. Chemical aspects of derivatization and various alkylation (arylation) reagents and reaction procedures are described. Specific mass spectral (electron ionization, chemical ionization) features of derivatives helpful in identification, structure elucidation, profiling and quantitative determination of the above-mentioned polar compounds by coupled gas chromatography or high-performance liquid chromatography are discussed. Some common analytical applications of the procedures in organic chemistry, clinical chemistry, environmental chemistry etc. are briefly summarized.

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“…The use of gas chromatography to determine the addi tive is complicated because zinc dithiophosphates should be derivatized prior to analysis [12,13].…”

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confidence: 99%

“…zinc dithiophosphate with subsequent determination by IR spectroscopy [18]. To extract an additive from sam ples of commercial oils, silica was also used in [12,13]. A method of separating zinc dithiophosphates from oil at a Bakerbond 7086 03 cartridge for solid phase extraction is described; hexane (40 mL), dichlo romethane (10 mL), and a mixture of dichlo romethane and acetone (90 : 10 vol, 10 mL) were used successively as eluents; the combined two last fractions were analyzed [12].…”

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Extraction-chromatographic determination of zinc dithiophosphates in engine oils

et al. 2015

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State of the art problems of the determination of zinc dithiophosphates in engine oils are con sidered. Zinc dithiophosphates are used as multifunctional additives in engine oils and determine their anti oxidant, antiwear, and antifriction properties. The factors that prevent the determination of additives in the test samples and methods for their elimination are studied. The analytical methods used for the screening and determination of zinc dithiophosphates in engine oils are assessed. Given the complexity of the oil matrix, the procedure including the preseparation of analytes on hydroxylated silica using solid phase extraction and the separation of the base oil components and some additives by two stage extraction followed by the detec tion of analytes by high performance liquid chromatography (HPLC) should be considered the most suitable for determining zinc dithiophosphates. The proposed procedure for the determination of zinc dithiophos phates in engine oils was tested on a number of commercial samples with satisfactory results.

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Structural determination of zinc dithiophosphates in lubricating oils by gas chromatography–mass spectrometry with electron impact and electron-capture negative ion chemical ionization

Cited by 21 publications

References 6 publications

Thermodynamic and Kinetic Study of Zinc bis-(Dipalmithyl Dithiophosphate) Activity as Anti-Corrosion Additive-Fatty Acid Based Through Potentiodynamic Polarization Technique

Thermodynamic and Kinetic Study of Zinc bis-(Dipalmithyl Dithiophosphate) Activity as Anti-Corrosion Additive-Fatty Acid Based Through Potentiodynamic Polarization Technique

Derivatization in Mass Spectrometry– 3. Alkylation (Arylation)

Extraction-chromatographic determination of zinc dithiophosphates in engine oils

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