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Direct Separation and Quantitative Determination of (<i>n</i>-, Iso-)Alkanes in Neat Asphalt Using Urea Adduction and High-Temperature Gas Chromatography (HTGC)

https://doi.org/10.1021/ef060256b
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9/9 checkable references clean · checked 2026-07-23

Every reference with a DOI in the deposited reference list resolved to a known work in Crossref or DataCite at the dated check, and none carried a retraction, withdrawal, or removal notice.

15 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.

The 9 checked references that resolve
resolves10.1021/ef980184r
A <sup>13</sup>C NMR and DSC Study of the Amorphous and Crystalline Phases in Asphalts
resolves10.1016/S0146-6380(01)00071-7
Ubiquitous occurrence of high molecular weight hydrocarbons in crude oils
resolves10.1039/jm9960601723
Structure and dynamics of hydrogen bonding guests in urea inclusion compounds
resolves10.1021/ac00281a020
Determination of structural characteristics of saturates from diesel and kerosine fuels by carbon-13 nuclear magnetic resonance spectrometry
resolves10.1016/0016-2361(90)90271-Q
Extraction of vanadium from petroleum coke samples by means of microwave wet acid digestion
resolves10.1016/0016-2361(94)90024-8
Analysis of n-paraffins in light crudes: Molecular sieve and urea adduction techniques revisited
resolves10.1021/ac60267a002
Determination of noraml paraffins in petroleum heavy distillates by urea adduction and gas chromatography
resolves10.1021/ac60273a004
Composition of asphalt based on generic fractionation, using solvent deasphaltening, elution-adsorption chromatography, and densimetric characterization
resolves10.1021/ef970216v
Molecular Speciation of Saturates by On-Line Liquid Chromatography−Field Ionization Mass Spectrometry
The 15 references without a DOI — listed, not checked
no DOI — not checkedParaffin Products. Properties, Technologies, Applications
no DOI — not checkedAsphalt Science and Technology
no DOI — not checkedAsphalt Science and Technology
no DOI — not checkedef060256bb00005/ef060256bb00005_1
no DOI — not checkedInclusion Compounds
no DOI — not checkedef060256bb00008/ef060256bb00008_1
no DOI — not checkedef060256bb00009/ef060256bb00009_1
no DOI — not checkedef060256bb00010/ef060256bb00010_1
no DOI — not checkedKhan, H. U.; Medhwal, D. C.Sci. Technol.1993, November, 415−417.
no DOI — not checkedSHRP-A-335
no DOI — not checkedSHRP-A-645
no DOI — not checkedChemical AnalysisDetermination of Organic Compounds:  Methods and Procedures
no DOI — not checkedFundamental Properties of Asphalts and Modified Asphalts
no DOI — not checkedWestern Research Institute. Fundamental Properties of Asphalts and Modified Asphalts. Quarterly Technical Report, August 16−November 15, 2001; Federal Highway Administration, contract number DTFH61-99C-00022, November 2001; pp 183−193.
no DOI — not checkedInterpretive Report
What this badge says. CiteStamped means the CHECKABLE references of this work were clean at the dated check: each resolved to a known work in a public registry, and none carried a retraction notice at that time. It says nothing about the quality, findings, or importance of the work itself, and nothing about references deposited without a DOI.

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