Abdullah AlFaris, N., Zaidan ALTamimi, J., ALOthman, Z. A., Fahad Al Qahtani, S., Wabaidur, S. M., Ghfar, A. A., & Saleh Aldayel, T. (2020). Analysis of aflatoxins in foods retailed in saudi arabia using immunoaffinity column cleanup and high-performance liquid chromatography-fluorescence detection. Journal of King Saud University - Science, 32(2), 1437-1443. doi:10.1016/j.jksus.2019.11.039

Abdullah AlFaris, N., Zaidan ALTamimi, J., ALOthman, Z. A., Wabaidur, S. M., Ghafar, A. A., & Saleh Aldayel, T. (2020). Development of a sensitive liquid-liquid extraction and ultra-performance liquid chromatography-tandem mass spectrometry method for the analysis of carbaryl residues in fresh vegetables sold in riyadh. Journal of King Saud University - Science, 32(4), 2414-2418. doi:10.1016/j.jksus.2020.03.030

AbuRuz, S., Millership, J., & McElnay, J. (2003). Determination of metformin in plasma using a new ion pair solid phase extraction technique and ion pair liquid chromatography. Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences, 798(2), 203-209. doi:10.1016/j.jchromb.2003.09.043

Adlnasab, L., Ezoddin, M., Shojaei, R. A., & Aryanasab, F. (2018). Ultrasonic-assisted dispersive micro solid-phase extraction based on melamine-phytate supermolecular aggregate as a novel bio-inspired magnetic sorbent for preconcentration of anticancer drugs in biological samples prior to HPLC-UV analysis. Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences, 1095, 226-234. doi:10.1016/j.jchromb.2018.08.001

AlFaris, N. A., Wabaidur, S. M., Alothman, Z. A., Altamimi, J. Z., & Aldayel, T. S. (2020). Fast and efficient immunoaffinity column cleanup and liquid chromatography–tandem mass spectrometry method for the quantitative analysis of aflatoxins in baby food and feeds. Journal of Separation Science, 43(11), 2079-2087. doi:10.1002/jssc.201901307

Almasoud, N., Wabaidur, S. M., Alothman, Z. A., Ghfar, A. A., & Alomar, T. S. (2020). A solid phase extraction based uplc-esi-ms/ms method using surfactant-modified clay as extraction sorbent for the removal andetermination of rhodamine b in industrial wastewater samples. Desalination and Water Treatment, 195, 222-231. doi:10.5004/dwt.2020.25896

ALOthman, Z. A., Habila, M. A., Yilmaz, E., Alabdullkarem, E. A., & Soylak, M. (2020). A novel deep eutectic solvent microextraction procedure for enrichment, separation and atomic absorption spectrometric determination of palladium at ultra-trace levels in environmental samples. Measurement: Journal of the International Measurement Confederation, 153 doi:10.1016/j.measurement.2019.107394

ALOthman, Z. A., & Wabaidur, S. M. (2019). Application of carbon nanotubes in extraction and chromatographic analysis: A review. Arabian Journal of Chemistry, 12(5), 633-651. doi:10.1016/j.arabjc.2018.05.012

Alshishani, A., Makahleh, A., Yap, H. F., Gubartallah, E. A., Salhimi, S. M., & Saad, B. (2016). Ion-pair vortex assisted liquid-liquid microextraction with back extraction coupled with high performance liquid chromatography-UV for the determination of metformin in plasma. Talanta, 161, 398-404. doi:10.1016/j.talanta.2016.08.067

Alshishani, A., Saaid, M., Basheer, C., & Saad, B. (2019). High performance liquid chromatographic determination of triclosan, triclocarban and methyl-triclosan in wastewater using mini-bar micro-solid phase extraction. Microchemical Journal, 147, 339-348. doi:10.1016/j.microc.2019.03.044

Andrade-Eiroa, A., Canle, M., Leroy-Cancellieri, V., & Cerdà, V. (2016). Solid-phase extraction of organic compounds: A critical review. part ii. TrAC - Trends in Analytical Chemistry, 80, 655-667. doi:10.1016/j.trac.2015.08.014

Asadi, S., & Nojavan, S. (2016). Two-step voltage dual electromembrane extraction: A new approach to simultaneous extraction of acidic and basic drugs. Analytica Chimica Acta, 923, 24-32. doi:10.1016/j.aca.2016.04.007

Asl, Y. A., Yamini, Y., Seidi, S., & Rezazadeh, M. (2016). Simultaneous extraction of acidic and basic drugs via on-chip electromembrane extraction. Analytica Chimica Acta, 937, 61-68. doi:10.1016/j.aca.2016.07.048

Azhar, A., Yamauchi, Y., Allah, A. E., Alothman, Z. A., Badjah, A. Y., Naushad, M., . . . Zakaria, M. B. (2019). Nanomaterials, 9, 1-11. Retrieved from www.scopus.com

Basheer, C., Ali Alnedhary, A., Rao, B. S. M., Valliyaveettil, S., & Lee, H. K. (2006). Development and application of porous membrane-protected carbon nanotube micro-solid-phase extraction combined with gas chromatography/mass spectrometry. Analytical Chemistry, 78(8), 2853-2858. doi:10.1021/ac060240i

Basheer, C., Lee, J., Pedersen-Bjergaard, S., Rasmussen, K. E., & Lee, H. K. (2010). Simultaneous extraction of acidic and basic drugs at neutral sample pH: A novel electro-mediated microextraction approach. Journal of Chromatography A, 1217(43), 6661-6667. doi:10.1016/j.chroma.2010.04.066

Bavatharani, C., Muthusankar, E., Alothman, Z. A., Wabaidur, S. M., Ponnusamy, V. K., & Ragupathy, D. (2020). Ultra-high sensitive, selective, non-enzymatic dopamine sensor based on electrochemically active graphene decorated polydiphenylamine-SiO2 nanohybrid composite. Ceramics International, 46(14), 23276-23281. doi:10.1016/j.ceramint.2020.06.054

Beausse, J. (2004). Selected drugs in solid matrices: A review of environmental determination, occurrence and properties of principal substances. TrAC - Trends in Analytical Chemistry, 23(10-11), 753-761. doi:10.1016/j.trac.2004.08.005

Berduque, A., Sherburn, A., Ghita, M., Dryfe, R. A. W., & Arrigan, D. W. M. (2005). Electrochemically modulated liquid-liquid extraction of ions. Analytical Chemistry, 77(22), 7310-7318. doi:10.1021/ac051029u

Brittain, H. G. (2007). Profiles of drug substances, excipients and related methodology. Profiles of Drug Substances, Excipients and Related Methodology, Retrieved from www.scopus.com

Domínguez-Romero, J. C., García-Reyes, J. F., & Molina-Díaz, A. (2014). Comparative evaluation of seven different sample treatment approaches for large-scale multiclass sport drug testing in urine by liquid chromatography-mass spectrometry. Journal of Chromatography A, 1361, 34-42. doi:10.1016/j.chroma.2014.07.090

Fan, W., He, M., You, L., Zhu, X., Chen, B., & Hu, B. (2016). Water-compatible graphene oxide/molecularly imprinted polymer coated stir bar sorptive extraction of propranolol from urine samples followed by high performance liquid chromatography-ultraviolet detection. Journal of Chromatography A, 1443, 1-9. doi:10.1016/j.chroma.2016.03.017

Fernández, E., Vidal, L., & Canals, A. (2016). Zeolite/iron oxide composite as sorbent for magnetic solid-phase extraction of benzene, toluene, ethylbenzene and xylenes from water samples prior to gas chromatography⬜mass spectrometry. Journal of Chromatography A, 1458, 18-24. doi:10.1016/j.chroma.2016.06.049

Gabr, R. Q., Padwal, R. S., & Brocks, D. R. (2010). Determination of metformin in human plasma and urine by high-performance liquid chromatography using small sample volume and conventional octadecyl silane column. Journal of Pharmacy and Pharmaceutical Sciences, 13(4), 486-494. doi:10.18433/j32c71

Habila, M. A., Alothman, Z. A., Yilmaz, E., & Soylak, M. (2018). Activated carbon cloth filled pipette tip for solid phase extraction of nickel(II), lead(II), cadmium(II), copper(II) and cobalt(II) as 1,3,4-thiadiazole-2,5-dithiol chelates for ultra-trace detection by FAAS. International Journal of Environmental Analytical Chemistry, 98(2), 171-181. doi:10.1080/03067319.2018.1430794

Habila, M. A., Alothman, Z. A., Yilmaz, E., & Soylak, M. (2018). Dispersive liquid-liquid microextraction of lead(II) as tropaeolin ooo chelates from environmental samples prior to microsampling flame atomic absorption spectrometry. Atomic Spectroscopy, 39(3), 112-117. Retrieved from www.scopus.com

Hanson, K. B., Hoff, D. J., Lahren, T. J., Mount, D. R., Squillace, A. J., & Burkhard, L. P. (2019). Estimating n-octanol-water partition coefficients for neutral highly hydrophobic chemicals using measured n-butanol-water partition coefficients. Chemosphere, 218, 616-623. doi:10.1016/j.chemosphere.2018.11.141

Hemmati, M., Rajabi, M., & Asghari, A. (2017). Ultrasound-promoted dispersive micro solid-phase extraction of trace anti-hypertensive drugs from biological matrices using a sonochemically synthesized conductive polymer nanocomposite. Ultrasonics Sonochemistry, 39, 12-24. doi:10.1016/j.ultsonch.2017.03.024

Huo, F., Tang, H., Wu, X., Chen, D., Zhao, T., Liu, P., & Li, L. (2016). Utilizing a novel sorbent in the solid phase extraction for simultaneous determination of 15 pesticide residues in green tea by GC/MS. Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences, 1023-1024, 44-54. doi:10.1016/j.jchromb.2016.04.053

Jajuli, M. N., Hussin, M. H., Saad, B., Rahim, A. A., Hébrant, M., & Herzog, G. (2019). Electrochemically modulated liquid-liquid extraction for sample enrichment. Analytical Chemistry, 91(11), 7466-7473. doi:10.1021/acs.analchem.9b01674

Kanimozhi, S., Basheer, C., Narasimhan, K., Liu, L., Koh, S., Xue, F., . . . Lee, H. K. (2011). Application of porous membrane protected micro-solid-phase-extraction combined with gas chromatography-mass spectrometry for the determination of estrogens in ovarian cyst fluid samples. Analytica Chimica Acta, 687(1), 56-60. doi:10.1016/j.aca.2010.12.007

Koruni, M. H., Tabani, H., Gharari, H., & Fakhari, A. R. (2014). An all-in-one electro-membrane extraction: Development of an electro-membrane extraction method for the simultaneous extraction of acidic and basic drugs with a wide range of polarities. Journal of Chromatography A, 1361, 95-99. doi:10.1016/j.chroma.2014.07.075

Lai, E. P. C., & Feng, S. Y. (2006). Solid phase extraction-non-aqueous capillary electrophoresis for determination of metformin, phenformin and glyburide in human plasma. Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences, 843(1), 94-99. doi:10.1016/j.jchromb.2006.05.030

Langmaier, J., Pižl, M., Samec, Z., & Záliš, S. (2016). Extreme basicity of biguanide drugs in aqueous solutions: Ion transfer voltammetry and DFT calculations. Journal of Physical Chemistry A, 120(37), 7344-7350. doi:10.1021/acs.jpca.6b04786

Lee, T. P., Saad, B., Ng, E. P., & Salleh, B. (2012). Zeolite linde type L as micro-solid phase extraction sorbent for the high performance liquid chromatography determination of ochratoxin A in coffee and cereal. Journal of Chromatography A, 1237, 46-54. doi:10.1016/j.chroma.2012.03.031

Lin, S., Yang, X., & Liu, H. (2019). Development of liposome/water partition coefficients predictive models for neutral and ionogenic organic chemicals. Ecotoxicology and Environmental Safety, 179, 40-49. doi:10.1016/j.ecoenv.2019.04.036

Luo, X., Zhang, F., Ji, S., Yang, B., & Liang, X. (2014). Graphene nanoplatelets as a highly efficient solid-phase extraction sorbent for determination of phthalate esters in aqueous solution. Talanta, 120, 71-75. doi:10.1016/j.talanta.2013.11.079

Luo, Y. -., Yuan, B. -., Yu, Q. -., & Feng, Y. -. (2012). Substrateless graphene fiber: A sorbent for solid-phase microextraction. Journal of Chromatography A, 1268, 9-15. doi:10.1016/j.chroma.2012.10.035

Magiera, S., Hejniak, J., & Baranowski, J. (2014). Comparison of different sorbent materials for solid-phase extraction of selected drugs in human urine analyzed by UHPLC-UV. Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences, 958, 22-28. doi:10.1016/j.jchromb.2014.03.014

Magiera, S., Pardylla, A., & Baranowska, I. (2015). Effects of various factors of ultrasonic treatment on the extraction recovery of drugs from fish tissues. Ultrasonics Sonochemistry, 26, 388-398. doi:10.1016/j.ultsonch.2015.03.005

Marchi, I., Rudaz, S., & Veuthey, J. -. (2009). Sample preparation development and matrix effects evaluation for multianalyte determination in urine. Journal of Pharmaceutical and Biomedical Analysis, 49(2), 459-467. doi:10.1016/j.jpba.2008.11.040

Musa, M., Wan Ibrahim, W. A., Mohd Marsin, F., Abdul Keyon, A. S., & Rashidi Nodeh, H. (2018). Graphene-magnetite as adsorbent for magnetic solid phase extraction of 4-hydroxybenzoic acid and 3,4-dihydroxybenzoic acid in stingless bee honey. Food Chemistry, 265, 165-172. doi:10.1016/j.foodchem.2018.04.020

Naing, N. N., Li, S. F. Y., & Lee, H. K. (2016). Evaluation of graphene-based sorbent in the determination of polar environmental contaminants in water by micro-solid phase extraction-high performance liquid chromatography. Journal of Chromatography A, 1427, 29-36. doi:10.1016/j.chroma.2015.12.012

Otoukesh, M., Es'haghi, Z., Feizy, J., & Nerin, C. (2020). Graphene oxide/ layered double hydroxides@ sulfonated polyaniline: A sorbent for ultrasonic assisted dispersive solid phase extraction of phthalates in distilled herbal beverages. Journal of Chromatography A, 1625 doi:10.1016/j.chroma.2020.461307

Partani, P., Modhave, Y., Gurule, S., Khuroo, A., & Monif, T. (2009). Simultaneous determination of propranolol and 4-hydroxy propranolol in human plasma by solid phase extraction and liquid chromatography/electrospray tandem mass spectrometry. Journal of Pharmaceutical and Biomedical Analysis, 50(5), 966-976. doi:10.1016/j.jpba.2009.06.050

Roy, K. S., Purohit, A. K., Chandra, B., Goud, D. R., Pardasani, D., & Dubey, D. K. (2018). Polymeric sorbent with controlled surface polarity: An alternate for solid-phase extraction of nerve agents and their markers from organic matrix. Analytical Chemistry, 90(11), 7025-7032. doi:10.1021/acs.analchem.8b01428

Sajid, M. (2017). Porous membrane protected micro-solid-phase extraction: A review of features, advancements and applications. Analytica Chimica Acta, 965, 36-53. doi:10.1016/j.aca.2017.02.023

Sequeiros, R. C. P., Neng, N. R., Portugal, F. C. M., Pinto, M. L., Pires, J., & Nogueira, J. M. F. (2011). Development and application of stir bar sorptive extraction with polyurethane foams for the determination of testosterone and methenolone in urine matrices. Journal of Chromatographic Science, 49(4), 297-302. doi:10.1093/chrsci/49.4.297

Shah, P. A., & Shrivastav, P. S. (2018). Ion-pair solid phase extraction for the simultaneous separation and quantitation of metformin and canagliflozin in human plasma by LC-MS/MS. Microchemical Journal, 143, 181-189. doi:10.1016/j.microc.2018.08.005

Shen, Q., Gong, L., Baibado, J. T., Dong, W., Wang, Y., Dai, Z., & Cheung, H. -. (2013). Graphene based pipette tip solid phase extraction of marine toxins in shellfish muscle followed by UPLC-MS/MS analysis. Talanta, 116, 770-775. doi:10.1016/j.talanta.2013.07.042

Tache, F., David, V., Farca, A., & Medvedovici, A. (2001). Microchem.J., 68, 398-404. Retrieved from www.scopus.com

Wabaidur, S. M., AlAmmari, A., Aqel, A., AL-Tamrah, S. A., Alothman, Z. A., & Ahmed, A. Y. B. H. (2016). Determination of free fatty acids in olive oils by UPHLC–MS. Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences, 1031, 109-115. doi:10.1016/j.jchromb.2016.07.040

Yamamoto, T., Kusama, M., Matsuno, K., Sugiyama, E., Yamada, Y., & Iga, T. (2002). A new method for determination of buformin in plasma and urine by ion-paired reversed-phase HPLC with ultraviolet detection. Biomedical Chromatography, 16(7), 453-454. doi:10.1002/bmc.182

Zakaria, M. B., Tan, H., Kim, J., Badjah, A. Y., Naushad, M., Habila, M., . . . Lin, J. (2019). Structurally controlled layered ni 3 C/graphene hybrids using cyano-bridged coordination polymers. Electrochemistry Communications, 100, 74-80. doi:10.1016/j.elecom.2019.01.004

Zhang, L., Wang, Z. -., Li, H., Liu, Y., Zhao, M., Jiang, Y., & Zhao, W. -. (2014). Simultaneous determination of 12 illicit drugs in whole blood and urine by solid phase extraction and UPLC-MS/MS. Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences, 955-956(1), 10-19. doi:10.1016/j.jchromb.2014.02.007

Zhang, Z. L., & Zhou, J. L. (2007). Simultaneous determination of various pharmaceutical compounds in water by solid-phase extraction-liquid chromatography-tandem mass spectrometry. Journal of Chromatography A, 1154(1-2), 205-213. doi:10.1016/j.chroma.2007.03.105