Patents by Inventor Abdulmumin A NUHU

Abdulmumin A NUHU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of determining phenoxy herbicides in water samples by phase transfer microextraction with simultaneous derivatization and gas-chromatography mass-spectrometry analysis
    Patent number: 9316629
    Abstract: A method for determining the concentration of a phenoxy herbicide in an aqueous sample, by simultaneously phase-transfer catalyst extracting and alkylating an aqueous sample comprising a phenoxy herbicide to form a sample composition, and measuring an amount of the alkylated phenoxy herbicide in the sample composition. The method includes controlling factors such as pH of the aqueous matrix, temperature, extraction duration, type and amount of derivation reagents, and type and amount of phase transfer catalyst.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: April 19, 2016
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Abdulmumin A. Nuhu, Chanbasha Basheer, Khalid Alhooshani, Abdul Rahman Al-Arfaj
  • DETERMINATION OF POLYCYCLIC AROMATIC HYDROCARBONS IN WATER USING NANOPOROUS MATERIAL PREPARED FROM WASTE AVIAN EGG SHELL
    Publication number: 20150377752
    Abstract: Nanoporous polymorphic crystals of CaCO3 were used as sorbent and were applied in the dispersive micro-solid-phase extraction of selected polycyclic aromatic hydrocarbons as target analytes. After separation of the analytes on gas chromatography, they were successfully quantified with external calibration using flame ionization detection. Performance of the dispersive micro-solid-phase extraction was compared with a previously optimized solid-phase extraction technique.
    Type: Application
    Filed: September 4, 2015
    Publication date: December 31, 2015
    Applicant: King Fahd University of Petroleum and Minerals
    Inventors: Abdulmumin A. Nuhu, Chanbasha Basheer, Amjad Ashfaque Shaikh, Abdul Rahman Al-Arfaj
  • Dispersive micro solid phase extraction of polycyclic aromatic hydrocarbons from an aqueous sample
    Patent number: 9222858
    Abstract: Nanoporous polymorphic crystals of CaCO3 were used as sorbent and were applied in the dispersive micro-solid-phase extraction of selected polycyclic aromatic hydrocarbons as target analytes. After separation of the analytes on gas chromatography, they were successfully quantified with external calibration using flame ionization detection. Performance of the dispersive micro-solid-phase extraction was compared with a previously optimized solid-phase extraction technique.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: December 29, 2015
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Abdulmumin A. Nuhu, Chanbasha Basheer, Amjad Ashfaque Shaikh, Abdul Rahman Al-Arfaj
  • Determination of polycyclic aromatic hydrocarbons in water using nanoporous material prepared from waste avian egg shell
    Patent number: 9146228
    Abstract: Nanoporous polymorphic crystals of CaCO3 were used as sorbent and were applied in the dispersive micro-solid-phase extraction of selected polycyclic aromatic hydrocarbons as target analytes. After separation of the analytes on gas chromatography, they were successfully quantified with external calibration using flame ionization detection. Performance of the dispersive micro-solid-phase extraction was compared with a previously optimized solid-phase extraction technique.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: September 29, 2015
    Assignee: King Fahd University of Petroleum and Minerals
    Inventors: Abdulmumin A. Nuhu, Chanbasha Basheer, Amjad Ashfaque Shaikh, Abdul Rahman Al-Arfaj
  • DETERMINATION OF POLYCYCLIC AROMATIC HYDROCARBONS IN WATER USING NANOPOROUS MATERIAL PREPARED FROM WASTE AVIAN EGG SHELL
    Publication number: 20150099308
    Abstract: Nanoporous polymorphic crystals of CaCO3 were used as sorbent and were applied in the dispersive micro-solid-phase extraction of selected polycyclic aromatic hydrocarbons as target analytes. After separation of the analytes on gas chromatography, they were successfully quantified with external calibration using flame ionization detection. Performance of the dispersive micro-solid-phase extraction was compared with a previously optimized solid-phase extraction technique.
    Type: Application
    Filed: October 9, 2013
    Publication date: April 9, 2015
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Abdulmumin A. NUHU, CHANBASHA BASHEER, AMJAD ASHFAQUE SHAIKH, ABDUL RAHMAN AL-ARFAJ
  • METHOD OF DETERMINING PHENOXY HERBICIDES IN WATER SAMPLES BY PHASE TRANSFER MICROEXTRACTION WITH SIMULTANEOUS DERIVATIZATION AND GAS-CHROMATOGRAPHY MASS-SPECTROMETRY ANALYSIS
    Publication number: 20150079692
    Abstract: A method for determining the concentration of a phenoxy herbicide in an aqueous sample, by simultaneously phase-transfer catalyst extracting and alkylating an aqueous sample comprising a phenoxy herbicide to form a sample composition, and measuring an amount of the alkylated phenoxy herbicide in the sample composition. The method includes controlling factors such as pH of the aqueous matrix, temperature, extraction duration, type and amount of derivation reagents, and type and amount of phase transfer catalyst.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 19, 2015
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: Abdulmumin A NUHU, Chanbasha Basheer, Khalid Alhooshani, Abdul Rahman Al-Arfaj