Colorimetric and fluorescent sensing of Al3+ by a new 2-hydroxynaphthalen based Schiff base "Off-On" chemosensor

Simultaneous Detection of Cu2+ and Co2+ by a Water‐Soluble Carboxamide‐Based Colorimetric Chemosensor

“…Schiff base ligands can be easily synthesized using amines and aldehydes . Coordination of Schiff bases to metal ions would enhance ICT transition or induce LMCT transition, which could be used for detecting them . In particular, Schiff base ligands containing phenolic groups often have a good water solubility and can provide a good binding site to the transition metals .…”

A dual‐function chemosensor based on coumarin for fluorescent turn‐on recognition of Hg2+ and colorimetric detection of Cu2+ in aqueous media

“…Schiff bases have gained much attention because of their good coordination ability and easy synthesis procedures. [3,[26][27][28] Coumarin and its derivatives are a particular class of heterocyclic compounds, which have a great significance in various fields of science and technology such as pharmaceutics, optical materials, chemosensors, and solar energy materials. [29][30][31][32] Thiodiazole molecule is a highly conjugated aromatic heterocyclic and its derivatives have vast potential and demands in disinfection, weedicide, and sterilization applications as they possess a variety of biological activities.…”

“…Schiff bases have gained much attention because of their good coordination ability and easy synthesis procedures . Coumarin and its derivatives are a particular class of heterocyclic compounds, which have a great significance in various fields of science and technology such as pharmaceutics, optical materials, chemosensors, and solar energy materials .…”

Development of a fluorescent probe for detecting Al3+ in cooked wheaten food based on phosphonic acid group functionalized polythiophene derivatives

“…recommended that the average daily intake of aluminium by the human body should be c. 3-10 mg and the maximum acceptable amount for the body is 7 mg kg À1 body weight per week. [12][13][14] In addition, the national standard GB 15202-2003 in China stated that the maximum levels of aluminium in flour-containing foods should be 100 mg kg À1 . Therefore, it is necessary to develop an efficient method for detection of Al 3+ in food samples.…”

“…[19,20] Compared with these methods, fluorescence detection has attracted increasing attention due to its good properties such as high sensitivity and selectivity, versatility, easy operation and low cost. [13,[21][22][23] Some fluorescent sensors have been used to detect Al 3+ . For instance, Erdemir designed a fluorescence sensor T. Yang and C. Xu contributed equally to this work (triphenylamine appended rhodamine derivative) to detect Al 3+ in MeCN-H 2 O (v/v = 9/1).…”