1. Editorial

   • Bernd Spangenberg

   Editorial Open access 03 March 2020 Pages: 1 - 1

   

2. A new thin-layer chromatography–direct bioautography assay for the qualitative and quantitative determination of peroxidase inhibitors in plant extracts

   • Reham S. Darwish
   • Eman Shawky
   • Fathallah M. Harraz

   Original Research Paper 14 February 2020 Pages: 3 - 9

   

3. The use of thin-layer chromatography in the assessment of the quality of lutein-containing dietary supplements

   • Piotr Migas
   • Natalia Stempka
   • Mirosława Krauze-Baranowska

   Original Research Paper 14 February 2020 Pages: 11 - 18

   

4. Qualitative and quantitative analysis of arctiin and arctigenin in Arctium tomentosum Mill. by high-performance thin-layer chromatography

   • Liang Ge
   • Fuming Liu
   • Xiaoying Zhou

   Original Research Paper 14 February 2020 Pages: 19 - 26

   

5. Simultaneous identification of rutin, chlorogenic acid and gallic acid in Moringa oleifera by densitometric high-performance thin-layer chromatography method

   • Pravej Alam
   • Prawez Alam
   • Mohammed H. Alqarni

   Original Research Paper 17 February 2020 Pages: 27 - 32

   

6. Development of a HPTLC method to profile the phytochemicals in Allanblackia parviflora (tallow tree) kernel and seed cakes

   • Wilfred Sefah
   • Lydia Sefah
   • Hayford Ofori

   Original Research Paper 20 February 2020 Pages: 33 - 41

   

7. High-performance thin-layer chromatographic determination of trigonelline content in various extracts and different varieties of some commercial coffees available in the Saudi Arabian market

   • Ahmed I. Foudah
   • Prawez Alam
   • Hasan S. Yusufoglu

   Original Research Paper 14 February 2020 Pages: 43 - 50

   

8. Comparative study on the determination of ethyl p-methoxycinnamate in Kaempferia galanga rhizome by HPTLCS and HPLC

   • Kui Zhang
   • Wenxia Wu
   • Shuge Tian

   Original Research Paper 19 February 2020 Pages: 51 - 57

   

9. Comparative study of HPLC-DAD and HPTLC for the simultaneous determination of a new multitarget antidiabetic ternary mixture in combined tablets

   • Ola Hossam-Eldin El-Shoubashy
   • Youssef Abou El Makarem Beltagy
   • Dina Salah El-Kafrawy

   Original Research Paper 13 February 2020 Pages: 59 - 70

   

10. Development and validation of a simple HPTLC method for the determination of new hepatitis C subtype 4 antiviral agents in their tablet dosage form

    • Mahmoud M. Elkhoudary
    • Basma M. Selim
    • Alaa El-Gindy

    Original Research Paper 21 February 2020 Pages: 71 - 77

    

11. Spectrophotometric and spectrodensitometric quantification of a new antiviral combination

    • Safar M. Alqahtani
    • Mubarak A. Alamri
    • Fatmah A. Alasmary

    Original Research Paper 22 February 2020 Pages: 79 - 87

    

12. Low-voltage thin-layer electrophoresis of inorganic anions on silica gel-G and titanium (IV) tungstate layers: separation of coexisting F⁻, Cl⁻, Br⁻ and I⁻, I⁻, IO₃⁻ and IO₄⁻, Fe(CN)₆⁴⁻ and Fe(CN)₆³⁻

    • Surendra Dutt Sharma
    • Charu Sharma

    Original Research Paper 14 February 2020 Pages: 89 - 95