TCPP [=Tetrakis(4-carboxyphenyl)porphyrin] [Ultra-high sensitive spectrophotometric reagent for Cu, Cd] [For the simultaneous determination of metals by HPLC] (Sigma Aldrich/Merck/TCI Chemical Grade)
Thiomichler's Ketone [Sensitive spectrophotometric reagent for Au, Ag, Hg and Pd, use for the determination of residual chlorine] (Sigma Aldrich/Merck/TCI Chemical Grade)
Sulfonazo III [Spectrophotometric reagent for alkaline earth metals and indicator for the precipitation titration of SO4with Ba] (Sigma Aldrich/Merck/TCI Chemical Grade)
Dimethylsulfonazo III [Spectrophotometric reagent for alkaline earth metals and indicator for the precipitation titration of SO4with Ba] (Sigma Aldrich/Merck/TCI Chemical Grade)