Separation of Sudan dyes from chilli powder by magnetic molecularly imprinted polymer

Nanosilica-based molecularly imprinted polymer nanoshell for specific recognition and determination of rhodamine B in red wine and beverages

“…Certain concentrations of HCl and NaOH solutions were used to adjust the solution pH. However, we originally failed in the synthesis of γ-MPS-modified silica using the acidic aqueous alcohol system reported in literature [38]. The SiO2-MPS particles obtained were not uniform in size and shape.…”

Synthesis of magnetic molecularly imprinted polymers by reversible addition fragmentation chain transfer strategy and its application in the Sudan dyes residue analysis

“…Moreover, the comparison of the developed method with other reported SPE coupled with HPLC−UV methods for determination of Sudan dyes was summarized in Table 2. As can be seen, the LODs of the developed method were lower than those of Hollow-MIPs [25,34], Alumina N SPE [38], and Ionic liquid-modified polymeric microspheres (ILPM) [39] and similar to those of MMIPs [33]. It showed the MMIPs prepared by RAFT polymerization was feasible in the determination of these Sudan dyes in real samples.…”

“…Thus, a sensitive and faster method for the identification and quantification of such Sudan dyes in foods is required urgently. Although MMIPs developed by RAFT methodology [12,[28][29][30][31] and the separation of Sudan dyes from chilli powder by MIPs [32][33][34] are reported, the MMIP made by RAFT technology for the extraction and separation of Sudan dyes have never been reported so far.…”

Towards SERS based applications in food analytics: Lipophilic sensor layers for the detection of Sudan III in food matrices

“…For the analysis liquid chromatography, mainly highpressure liquid chromatography (HPLC), in combination with different types of mass spectrometry is applied [6][7][8][9]. Moreover, other types of detectors like UV-vis-spectrometers [10][11][12] or photodiode arrays [13][14][15][16][17] come also into operation. An elaborate overview about sample pre-processing and various types of chromatographic approaches for detecting Sudan dyes can be found herein [5].…”