Carbon nanotubes in capillary electrophoresis, capillary electrochromatography and microchip electrophoresis

Carbon nanotubes are among the plethora of novel nanostructures developed since the 1980s. Nanotubes have attracted considerable interest by the scientific community thanks to their extraordinary physical and chemical properties. Research areas have flourished in recent years and now include the nano-electronic, (bio)sensor and analytical field along with many others. This review covers applications of carbon nanotubes in capillary electrophoresis, capillary electrochromatography and microchip electrophoresis. First, carbon nanotubes and a range of electrophoretic techniques are briefly introduced and key references are mentioned. Next, a comprehensive survey of achievements in the field is presented and critically assessed. The merits and downsides of carbon nanotube addition to the various capillary electrophoretic modes are addressed. The different schemes for fabricating electrochromatographic stationary phases based on carbon nanotubes are discussed. Finally, some future perspectives are offered.

Capillary Methods for Drug Analysis

This review gives an overview of the applicability of capillary electrophoresis, capillary liquid chromatography, capillary electrochromatography, and their derived techniques to analyze drug impurity mixtures, formulations, biological samples, and chiral compounds. For each application type, a few examples are given to illustrate the potential of the capillary technique. Details are provided about the capillaries used, chiral selectors, and stationary and mobile phases.

PERBANDINGAN BEBERAPA METODE ANALISIS HISTAMIN UNTUK PRODUK PERIKANAN

Studi ini bertujuan untuk membandingkan beberapa metode dalam penentuan kadar amina biogenik histamin. Diketahui, kadar histamin merupakan salah satu parameter yang penting sebagai standar kualitas produk perikanan. Metode yang dibandingkan meliputi metode menggunakan spektrofluorometri, High Performance Liquid Chromatography (HPLC), Enzyme Linked Immunosorbent Assay (ELISA), dan Capillary Electrophoresis/Capillary Zone Electrophoresis (CE/CZE). Hasil perbandingan menunjukkan bahwa baik dari sisi ketidakpastian yang mungkin ditimbulkan dari metodenya serta hasil uji kelayakan laboratorium di Eropa, metode HPLC derivatisasi post-kolom merupakan metode yang optimal saat ini untuk menentukan kadar histamin secara kuantitatif. Akan tetapi, untuk pertimbangan efisiensi waktu, maka studi ini mengusulkan bahwa penggabungan metode ELISA kualitatif dan HPLC kuantitatif sangat baik dijadikan sebagai standar metode penentuan histamin di laboratorium pengujian produk perikanan.