1. Extractive cloud point spectrophotometric determination of Mesalazine using brilliant green dye,
Fatma M. Jabar, Shireen O. Ismael and Theia’a N. Al-Sabha, World Journal of Pharmacy and Pharmaceutical Sciences, Vol. 11, Issue 2, 2022, 151-164
2. Determination of Omeprazole, Esomeprazole and Pantoprazole by Quenching the fluorescence of Eosin Y, Ikram K. Othman and Theia’a N. Al-Sabha, International Research Journal of Pure & Applied Chemistry 23(2): 28-39, 2022.
3. Spectrophotometric Determination of Salbutamol and Terbutaline using 9-Chloroacridine Reagent, Fatma M. Jabara ,Theia’a N. Al-Sabha and Shireen O. Ismael, Egypt. J. Chem. Vol. 65, No. 2 pp. 61 – 70 (2022).
4. Spectrofluorimetric Determination of Some N. Containing Medicines Using Rhodamine 6G as a Chromogenic Reagent, Mohamed Y. Dhamra and Theia’a N. Al-Sabha, Pak. J. Anal. Environ. Chem. Vol. 22, No. 2 (2021) 367 – 375.
5. A Novel Spectrophotometric Determination and Kinetic Study of Sulfamethoxazole in Pure and Tablet Formulation using 9-chloroacridine Reagent.
Alaa A. Ahmed a, Theia’a N. Al-Sabha a and Emad A. S. Al-Hyali, International Research Journal of Pure & Applied Chemistry 22(10): 1-13, 2021.
6. Spectrophotometric determination and kinetic study of Carvedilol and Clarithromycin via charge transfer complex formation.
Alaa A. Ahmed, Emad A. S. Al-Hyali and Theia’a N. Al-Sabha, World journal of pharmacy and pharmaceutical sciences, Volume 10, Issue 9, 2140-2162, 2021.
7. Spectrophotometric Method For Indirect Determination Of Antihypertensive Drugs In Pharmaceuticals.
Mohamed Y. Dhamra and Theia’a N. Al-Sabha, Egyptian Journal of Chemistry, Volume 63, Issue 10, pp. 3767 – 3777, 2020.
8. Spectrophotometric Determination of Dapsone Using Charge Transfer Complex Formation Reaction.
Mohammed S. Al-Enizzi; Omar A. Ahmad and Theia’a N. Al-Sabha, Egyptian Journal of Chemistry, Volume 63, Issue 8, pp. 3167- 3177, 2020.

9. Indirect Spectrophotometric Determination of Paracetamol Via Decolorization of Eriochrome Black-T With N-Bromosuccinimide.
Theia’a N. Al-Sabha and Zahraa J. Al-Gubouri, Accepted at J. Education and Science, Vol. 29, No.3, 2020, pp. 246-256

10. Development Method for Spectrophotometric Analysis of Sulfamethoxazole Using Vanilline Reagent.
Nidhal Sher Mohammed, Theia’a N. Al-Sabha and Payman Abdul-Jabar, Asian Journal of Applied Chemistry Research, 6(2): 41-49, 2020.

11. Application of Cloud Point Method for Spectrophotometric Determination of Salbutamol Sulphate and Methyldopa.
Theia’a N. Al-Sabha and Intisar A. Shihab, Pak. J. Anal. Environ. Chem. Vol. 21, No. 1 (2020) 10 – 18
12. Spectrophotometric Determination of Aspirin and Pyridoxine Hydrochloride Using 9-Chloroacridine Reagent in Aqueous Solution.
Theia’a N. A l-Sabha and Intisar A. Shihab, J. Education and Science, , 29, 1, 60-74, (2020).
13. Spectrophotometric determination of Ibuprofen and Nystatin via ion pair complex formation using chromotrope 2R.
Theia’a N. A l-Sabha and Intisar A. Shihab, J. Education and Science, 28, 2, 289-299, (2019).
14. Application of H-point standard addition method in simultaneous spectrophotometric determination of mesalasine and isoniazid via Schiff’s base formation reaction.
Theia’a N. Al-Sabha and Nagham N. Habeeb, Iraqi National Journal of Chemistry; 18(2), 73-84, (2018).
15. Spectrophotometric determination of terbutaline sulphate and tetracycline hydrochloride via ion pair complex formation using eosin Y.
Mohamed Y. Dhamra, N. Al-Sabha and Thabit S. Al-Ghabsha, Pak. J. Anal. Environ. Chem., 15, 1, 84 – 92, (2014).
16. Spectrofluorimetric determination of tetracycline and terbutaline sulphate in its pure
and dosage forms using eosin Y reagent.
Mohamed Y. Dhamra, N. Al-Sabha and Thabit S. Al-Ghabsha, Eur. Chem. Bull., 6(8), 336-342, (2017).
17. Spectrophotometric determination of mesalamine using sodium nitroprusside as chromogenic reagent.
Theia’a N. Al-Sabha and Nagham N. Habeeb, Eur. Chem. Bull., 4(8), 384-388, (2015).
18. Spectrophotometric assay of metoclopramide hydrochloride in bulk and in dosage form.
Hind A. W. Al-Azzawi1, Faiz M. Al-Obadi1 and Theia’a N. Al-Sabha, Iraqi National Journal of Chemistry 15(1), 59-76, (2015).
19. Selective spectrophotometric determination of some primary amines using 2,4- dinitrofluorobenzene Reagent.
Theia’a N. Al-Sabha and Intisar A. Hamody,Arabian Journ al of Chemistry 8, 465–473, (2015).
20. Colorimetric determination of metoclopramid hydrochloride and tranexamic acid using 9-chloroacridine reagent.
Theia’a N. Al-Sabha, Maha T. Al-Obaidi and Thabit S. Al-Ghabsha, Eur. Chem. Bull., 4(5), 234-239, (2015).
21. Spectrophotometric Determination of Adrenaline Using Methylthiazolyldiphenyl-tetrazolium-bromide (MTT).
Saladdin M.AL-Talib, Thabit S. Al-Ghabsha and Theia’a N. Al-Sabha, AL- Taqani , 27 , 2 , 46-53, (2014).
22. Spectrophotometric determination of aminophenol isomers using 9-chloroacridine reagent.
Theia’a N. Al-Sabha, Shireen O. Ismael and Suzan A. Ali, Eur. Chem. Bull., 3(2), 195-199, (2014).
23. Spectrophotometric Determination Of Nitrazepam And Dapson Using Vanillin Reagent in Pharmaceutical Preparations.
Maha T. Al-Obaidi, Theia’a N. Al-Sabha and Thabit S. Al-Ghabsha, J.Edu & Sci., 27, 1, 43-57, (2014).
24. Simultaneous Spectrophotometric Determination of m-Aminophenol and p-Aminophenol Using H-Point Standard Addition Method -Application to Real Waters.
Theia’a N. Al-Sabha and Nagham N. Habeb, J.Edu & Sci. 2014.
25. Spectrophotometric Assay of some Nitrogen Containing Drugs in Pharmaceutical Formulations using p-Chloranilic Acid Reagent.
Mahmood A. Hasan, Huda A. Ibrahim and Theia’a N. Al-Sabha, Journal of Advances in Chemistry, 9, 1, 1798-1809, (2014).
26. Application of chloranil and fluoranil π-acceptors for the spectrophotometric determination of mesalamine in pharmaceuticals.
Theia’a N. Al-Sabha, Mohammed S. Al-Enizzi and Omar A. Al-Taee, Eur. Chem. Bull., 3(4), 377-383, (2014).
27. Spectrophotometric determination of Sulphamethoxazole Via Charge Transfer complex Formation Reaction
Thabit S. Al-Ghabsha Mohammed S. Al-Enizzi Theia’a N. Al-Sabha, J. Edu. & Sci., 26, 4, 56-67, (2013).

28. Spectrophotometric Method for Determination of Chloramphenicol in Pharmaceutical Preparations using o-Chloranil Reagent.
Thabit S. Al-Ghabsha, Theia’a N. Al-Sabha and Mohammed S. Al-Enizzi, J.Edu & Sci., 26, 5, 36-47, 2013. Special volume for second conference on chemistry (November-2013).
29. The Use of 7,7′,8,8′-Tetracyanoquinodimethane for the Spectrophotometric Determination of Some Primary Amines-Application to Real Water Samples.
Theia’a N. Al-Sabha and Najwa M. Al-Karemy, Journal of Analytical Methods in Chemistry, 2013, 1-8, (2013).
30. Sensitive Spectrophotometric Method for Determination of Chloramphenicol in Pharmaceutical Preparations using 7,7′,8,8′-tetracyanoquinodimethane reagent.
Theia’a N. Al-Sabha and Hayfa M. Al-Hammoshi, J.Edu & Sci., 26, 2, 43-53, (2013).
31. Use of Charge Transfer Complex Formation Reaction in Spectrophotometric Microdetermination of Some Drugs.
Mohammed S. Al-Enizzi, Theia’a N. Al-Sabha, Thabit S. Al-Ghabsha, Jordan Journal of Chemistry, 7, 1, 87-102, (2012).
32. H-Point Standard Addition Method (HPSAM) in Simultaneous Spectrophotometric Determination of Binary Mixtures: An Overview.
Theia’a N. Al-Sabha, Andrei A. Bunaciu and Hassan Y. Aboul-Enein, Applied Spectroscopy Reviews, 46:607–623, (2011).
33. Simultaneous Spectrophotometric Determination of o-Aminophenol and p-Aminophenol.
Using H-Point Standard Addition Method -Application to Real Waters.
Theia’a N. Al-Sabha, Nagham N. Habeb, Pak. J. Anal. Environ. Chem. , 13, 01 , 53 -62, (2012).
34. Spectrophotometric Determination of Oxymetazoline Hydrochloride Based on the Oxidation Reactions.
Theia’a N. Al-Sabha and Bassam A. Rasheed, Jordan Journal of Chemistry, 6, 4, 403-411, (2011).
35. Spectrophotometric determination of trimethoprim using 2,4-dinitro-1-fluorobenzene reagent.
Theia’a N. Al-Sabha and Intesar A. Hamody, J.Edu & Sci., 24, 2, 1-12, (2011).
36. Spectrophotometric Determination of Aminophenol Isomers in Aqueous Solution using 1,2- Naphthoquinone-4-sulphonate Reagent.
Theia’a N. Al-Sabha, Nagham N. Habeb, Pak. J. Anal. Environ. Chem., , 1&2, 68-75, (2011).
37. Spectrophotometric determination of trifluoperazine via oxidative coupling reaction with sulfanilic acid.
Theia’a N. Al-Sabha, Omar A. Al-Taee and Maha T. Al-Obidi, J.Edu & Sci., 23, 1, (2010).
38. Spectrophotometric Method for Determination of Chloramphenicol in Pharmaceutical preparations Using 1,2-Naphthoquinone-4-Sulphonate as a Chromogenic Reagent.
Theia’a N. Al-Sabha and Bassam A. Rasheed, Jordan Journal of Chemistry, 5(2), 201-210, (2010).
39. Spectrophotometric Assay of phenylephrine hydrochloride Using 4-aminoantipyrine and Copper (II).
Theia’a N. Al-Sabha, Pak. J. Anal. Environ. Chem. 11, 1, 01-07, (2010).
40. Spectrophotometric determination of amikacin sulphate via charge transfer complex formation reaction using tetracyanoethylene and 2,3-dichloro-5,6-dicyano-1,4-benzoquinone reagents.
Theia’a N. Al-Sabha, The Arabian Journal for Science and Engineering, 35, 2A, 27-40, (2010).
41.Spectrophotometric determination of ampicillin and amoxicillin using tetracyanoethylene reagent in aqueous solution.
Theia’a N. Al-Sabha and Omar A. Al-Taee, Proceeding of the first scientific conference college of science, University of Tikrit, Iraq, 29-30 Sep., 2009
42. Environmental significance of iodine distribution in water resources at Mosul city, North Iraq.
Hassan A. Al-Jumaily, Salim M. Al-Dabbagh and Theia’a N. Al-Sabha, Medical Geology Newsletter, 15, 18-20 (2009).
43. Spectrophotometric determination of some phenothiazines using N- chlorosuccinimide.
Saladdin M. Al-Talib and Theia’a N. Al – Sabha, J. Raf. Sci.,4,20,27-37, (2009).
44. Spectrophotometric methods for determination of mesalazine through charge transfer complex formation.
Theia’a N. Al-Sabha and Omar A. Al-Taee, J.Edu & Sci. 21,1,49-62, (2008). Special volume for first conference on chemistry, (October – 2008).

45. The use of 2,3-dichloro-1,4-naphthaquinone for the spectrophotometric determination of some primary aliphatic amines in aqueous solution.
T.S. Al-Ghabsha, T. N. Al-sabha and U. I. Al-Neami, J.Edu & Sci.,22 ,1 ,43-53 (2009).
46. Indirect spectrophotometric determination of thiamine using Cu-NTA complex in aqueous solution.
Thabit S. Al-Ghabsha, Theia’a N. Al-Sabha and Mohammad Y. Thamra, J.Edu & Sci., 1, 21, 117-129, (2008). Special volume for first conference on chemistry, (October – 2008).
47. Selective spectrophotometric determination of some primary amines in aqueous solution using TCNE Reagent.
T. N. Al-Sabha and M. T. Al-Obidi, University of Sharjah Journal of Pure & Applied Sciences,5,1,23- 37(2008).
48. Development of spectrophotometric methods for assay of salbutamol in pharmaceutical formulations.
Theia’a N. Al-Sabha, J.Edu & Sci., 19, 1, 25-35, (2007).
49. Spectrophotometric determination of p-aminophenol and m-aminophenol in their admixture using tetracyanoethylene in aqueous medium.
T. N. Al-Sabha and O. A. M. Al-Taee, National Journal of Chemistry, 28,572-584, (2007).
50. Spectrophotometric determination of cephradine and cefadroxil using 2,3-dichloro-5,6-dicyano-1,4- benzoquinone reagent.
Thabit S. Al-Ghabsha, Theia’a N. Al-Sabha and Subhi M. Al-Mtaiwti, University of Sharjah Journal of Pure & Applied Sciences, 4,3, 13-28, (2007).
51. Spectrophotometric determination of some amino acids via charge-transfer complex formation reaction using 7,7′,8,8′-tetracyanoquinodimethane reagent.
Theia’a N. Al-Sabha and Najwa M. Al-Karemy, Anal. Chem. An Indian journal, 3, 4, 190-195, (2007).
52. Drinking water content of iodine and its relationship to iodine deficiency disorders (IDD), comparison between Basra and Mosul / Iraq.
Salim M. Al-Dabbagh, Theia’a N. Al-Sabha and Hassan A. Al-Jumaily, University of Sharjah Journal of Pure & Applied Sciences, 3,1-10, (2006).(Arabic).
53. Spectrophotometric determination of metoclopramide hydrochloride in bulk and in pharmaceutical preparation.
Theia’a N. Al-Sabha and Intisar A. Al-Hamody, National Journal of Chemistry, 24,561-570 (2006).
54. Indirect spectrophotometric determination of paracetamol via oxidative coupling reaction with 4- (2-pyridylazo)-resorcinol.
Thabit S. Al-Ghabsha, Theia’a N. Al-Sabha and Amal M. Saeed, J.Edu. & Sci. ,18,1,11-20, (2006).
55. Spectrophotometric determination of promethazine hydrochloride via oxidative coupling reaction with sulfanilic acid.
Theia’a N. Al-Sabha, Nief R. Ahmad and Mona I. Ibrahim, University of Sharjah Journal of Pure & Applied Sciences, 3,1, 1-12, (2006).
56. Indirect spectrophotometric determination of paracetamol using chlorocresol reagent.
Thabit S. Al-Ghabsha, Theia’a N. Al-Sabha and Mohammed S. Al-Enizzi, J.Edu. &Sci. 17,4, 1-10, (2005).
57. Indirect spectrophotometric determination of acetanilide in aqueous solution using
DDQ reagent.
Thabit S. Al-Ghabsha Theia’a N. Al-Sabha and Ghaydaa K.Hanna, J.Edu. &Sci., 17,4, 1-9, (2005). (Arabic).
58. Indirect spectrophotometric determination of cephalexin and paracetamol using Cu-NTA complex in aqueous solution.
Thabit S. Al-Ghabsha, Theia’a N. Al-Sabha and Amal M. Saeed, J.Edu & Sci. 3,1-15, (2005). (Arabic).
59. Use of TCNE reagent in spectrophotometric determination of cephalexin in pharmaceutical formulations.
Theia’a N. Al-Sabha and Maha T. Alobaidi, J.Edu & Sci., 16, 4, 13-29, (2004).
60. Indirect spectrophotometric determination of gentamicin and piperazine using Cu-NTA complex in aqueous solution.
Theia’a N. Al-Sabha and Razan Y. Al-Abachi, Raf.Jour.Sci.,4, (2004). (Arabic).
61. Spectrophotometric assay of some antibiotics and antitubecular INH drugs in different pharmaceutical preparations.
T.S. Al-Ghabsha and T.N. Al-Sabha, Raf.Jour.Sci.,13,3,19-27, (2002).
62. Spectrophotometric determination of benzylamine and dimethylamine using Cu-NTA complex in aqueous solution.
T. N. Al-Sabha and R.Y. Al-Abachi, J.Edu. & Sci., 53,13-25 (2001). (Arabic).
63. Spectrophotometric determination of thyroxin using DDQ reagent in aqueous solution.
T. N. Al-Sabha and R.Y. Al-Abachi, J.Edu. & Sci., 51,4-16 (2001). (Arabic).
64. Selective spectrophotometric determination of n-hexylamine and morpholine in binary mixtures via CT-complex formation reaction.
Thabit S. Al-Ghabsha, Theia’a N. Al-Sabha and Khalida M. Omar, J.Edu.& Sci., 51,73-82, (2001).
65. Selective spectrophotometric determination of morpholine in the presence of some nitrogen compounds.
Thabit S. Al-Ghabsha, Theia’a N. Al-Sabha and Khalida M. Omar, J.Edu. & Sci., 50,36-44, (2001).
66. Spectrophotometric microdetermination of o-aminophenol and some nitrogen compounds in binary mixtures in aqueous solution.
Theia’a N. Al-Sabha and Thabit S. Al-Ghabsha, J.Edu. & Sci., 45,73-85, (2000).
67. Spectrophotometric determination of aniline and some of its halosubstituents in aqueous solution via azo-dye formation reaction.
T. S. Al-Ghabsha, S. M. Al-Talib and T. N. Al-Sabha, J.Edu. & Sci., 32,19-26, (1998).
68. Spectrophotometric microdetermination of some proteins.
T. S. Al-Ghabsha, T. N. Al-Sabha and M. S. Saleem, Techi. Res. J. 28,51-60, (1995).
69. Spectrophotometric microdetermination of methyldopa in drug formulations.
T. S. Al-Ghabsha, T. N. Al-Sabha and M.S. Saleem, Techi.Res.J.7, 19, 49-57, (1994).
70. Spectrophotometric microdetermination of gentamicin and neomycin.
T. N. Al-Sabha, J.Edu. & Sci., 18,14-20, (1994).
71. Spectrophotometric determination of INH and kanamycin in some drug formulations
T. S. Al-Ghabsha, T. N. Al-Sabha and G. A. Al-Iraqi, Techi. Res. J. 16, (1993).
72. Spectrophotometric determination of microgram amounts of ampicillin with chloranil
T. S. Al-Ghabsha, T. N. Al-Sabha G. A. Al-Iraqi, Microchemical Journal, 35,293-295, (1987).
73. Spectrophotometric microdetermination of amoxicillin and neomycin with chloranil.
T. S. Al-Ghabsha, T. N. Al-Sabha G. A. Al-Iraqi, Microchemical Journal, 36, 323-325, (1987).
74. Spectrophotometric determination of microgram amounts of vitamin B1 with chloranil
T. S. Al-Ghabsha, S. A. Rahim and T. N. Al-Sabha, Microchemical Journal, 34, 89-91, (1986).