Multi-channel detection of Au(III) ions by a novel rhodamine based probe

AIEE Active Azomethine-Based Rhodamine Derivative For Ultrasensitive Multichannel Detection of Au3+ Through a Fluorimetrically, Electrochemically, and RGB-Based Sensing Assay

“…The computed values of K sv for RH-DMAC nanoaggregates was 4.835 × 10 –2 M –1 at pH 7. The obtained value was considerably higher when compared to prior studies on RhB-based fluorescence chemosensors, indicating the high sensitivity of the designed RH-DMAC nanoaggregates toward Au 3+ detection . In addition, the detection limit (LOD) was determined using the equation: LOD = 3σ/K sv ; where σ denotes the standard deviation and K sv is Stern–Volmer constant (as determined above).…”

“…As shown in Figure S18a, the absorption band of RH-DMAC nanoaggregates exhibited a substantial shift in wavelength (hypsochromic shift from 383 to 312 nm) in the presence of Au 3+ , demonstrating ground state complexation between RH-DMAC nanoaggregates and Au 3+ . Thus, it is presumed that the UV–vis study revealed the significant interactions between the sensor and Au 3+ solution . Moreover, the higher K sv values indicated a remarkably quenching efficiency toward Au 3+ owing to the greater charge transfer extent.…”

“…Moreover, the higher K sv values indicated a remarkably quenching efficiency toward Au 3+ owing to the greater charge transfer extent. In the meantime, we also examined the absorbance of RH-DMAC nanoaggregates in the existence of several other metal ions (Li + , Na + , K + , Ba 2+ , Ca 2+ , Mg 2+ , Co 2+ , Mn 2+ , Zn 2+ , Pb 2+ , Ni 2+ , Fe 2+ , Hg 2+ , Fe 3+ , Cd 2+ , Pd 2+ , Al 3+ , Cr 3+ , Cu 2+ , and nitrate salt of Ag + ) and noticed that there is no significant change in the sensor’s absorbance (Figure ES18b), exhibiting the selectivity of the complex formation between the sensor and Au 3+ only …”

A rhodamine based chemodosimeter for the detection of Group 13 metal ions

“…A comparative discussion has been done with some of the recently reported rhodamine based chemosensors. 13,[35][36][37][47][48][49][50][51][52][53][54][55][56][57][58] Different parameters of these rhodamine based chemosensors are given in Table S1. † In all of the cases, excitation and emission wavelengths are in the visible range.…”

An Anthracene and Indole-based Fluorescent Probe for the Detection of Chromium(III) Ions in Real Water Samples

“…There are several instruments for detecting trace chromium(III) ions, including atomic absorption spectroscopy (AES), atomic emission spectroscopy (AAS), and inductively coupled plasma mass spectroscopy (ICP-MS) [14][15][16][17][18][19]. On the other hand, uorescence approaches have received much attention compared to the mentioned methods above because of their great sensitivity and selectivity, low cost, ease of operation, and real-time detection [20][21][22][23][24]. For the detection of chromium(III) ions, various uorescent probes have been developed, such as rhodamine [25][26][27], Bodipy [28,29], coumarine [30], and anthracene [31,32]based uorescent probes.…”