In untreated serum of three patients with multiple myeloma, concentrations of inorganic phosphate ranged from 130 to 270 mg/L as measured with a chromogenic assay based on the interaction of phosphate ion with ammonium molybdate in the presence of ferrous sulfate. There were no clinical features of hyperphosphatemia, and values for total calcium concentration in serum remained within normal lim...

A rapid and simple procedure was developed for the determination of copper, iron, manganese, and zinc in animal feeds using an identical flow injection spectrophotometric manifold but different chromogenic reagents and different detection wavelengths. Bis(cyclohexanone)oxalydihydrazone, formaldoxime, 1,10-phenanthroline, and xylenol orange were adopted as chromogenic reagents for Cu, Mn, Fe, an...

Chromogenic reversal films (or color slides) are first-generation positive transparencies. These were used for various purposes, namely as an artistic medium, especially from the 1960s onwards. However, these materials intrinsically vulnerable to chemical degradation and have poor long-term stability. Although over time significant improvements been achieved in stability of chromogenic products...

Accurate and quick identification of bacterial fish disease has great importance for effective control prevent economic loss in aquaculture facilities. Generally used agar media allow the growth wide-range bacteria but new chromogenic results colored colonies that lead to presumptive without requiring biochemical or serological tests. In this study, recently commercialized media; chromID® CPS® ...