A new selective chromogenic and fluorogenic sensor for citrate ion

Curcumin nanoparticles combined with cloud point extraction for citrate determination in food and drug samples

“…Determination of citrate concentration is also a key factor in assessing the quality of agricultural, food and some of other products [1][2][3][4][5][6]. Up to now, numerous methods such as electrochemical [1,3,4], optical [5][6][7], luminescence [8,9], capillary zone electrophoresis [10], enzymatic [11] and flow-injection chemiluminescence [12] have been developed to determine the concentration of citrate. However, because of inadequate sensitivity and matrix interferences in most of the analytical techniques, direct determination of analytes without separation and preconcentration process is difficult.…”

A fluorescent sensor based on bicarboxamidoquinoline for highly selective relay recognition of Zn2+ and citrate with ratiometric response

“…In addition, citrate has been widely used in foods and pharmaceuticals [2,3]. Various techniques were established for the determination of citrate [4]. Nevertheless, some techniques with higher selectivity and convenience are still needed.…”

“…Up to now, considerable effort has been devoted to the development of fluorescent sensors for citrate [8][9][10]4,11]. For example, Fabbrizzi et al developed a metal-containing sensor for citrate based on the fluorescent indicator displacement [10].…”

“…For example, Fabbrizzi et al developed a metal-containing sensor for citrate based on the fluorescent indicator displacement [10]. Yen et al designed a symmetrical coumarin-based sensor for citrate [4]. Ghosh et al synthesized a pyridinium-based sensor for citrate through indicator displacement assay [11].…”

A New Schiff Base Chemodosimeter for Fluorescent Imaging of Ferric Ions in Living Cells

“…[21] Amplification of the fluorescence signal via chemodosimetric reaction is another potential route of interest to enable this counterintuitive fluorescence turn-on effect by Fe 3+ . [22,23] Earlier work in our laboratories established the design and synthesis of new receptors [24,25] for selective sensing of various metal ions and anions. Accordingly, we recently reported a new coumarin based Schiff base chemosensor [26,27] for Mg 2+ , Fe 3+ and a chemodosimeter [28] for HSO 4 − based on hydrolysis of Schiff base.…”