West Yorkshire Trading Standards officers found rhodamine B
in two types of Asian sweets for sale and in a rose-coloured powder at the company's Thornton Lodge factory, the court was told.
0) of Rhodamine B solution impregnated into pores of mesoporous silica, through structural and spectroscopic characterization techniques in order to applications in luminescence.
Impregnation of Rhodamine B solutions in mesoporous silica
Were mixing with calcined silica, 5 mL of each solution of Rhodamine B prepared in different pH values, until solubilization, after this, each mix of silica and Rhodamine B solution was washed three times with distilled water and dry at 50[degrees]C in a stove.
The coating binder was stained with Rhodamine B
, but kaolin, calcium carbonate, and the base paper were stained only slightly or not at all.
Even 24 hours after contact with the nitromusk called musk xylene or the polycyclic musks branded galaxolide and tonalide, mussel tissues absorbed and retained significantly more rhodamine B
Immediately after incubation, Epel and Luckenbach found rhodamine B
uptake to be 38-84% higher in tissue treated with musk compounds than in controls.
is not listed as a permitted additive to food and is connected with the treatment of sewage, the court heard.
The fluorescent dye rhodamine B was used as an indicator of efflux transporter activity.
For analysis, rhodamine B was extracted by sonicaring the tissue in 200 [micro]L n-butanol until fully homogenized, n-Butanol was used for extractions because, of the several extraction media tested (water, phosphate-buffered saline, some organic solvents), fluorescence signals from rhodamine B were strongest with this solvent.