TMPyP [=α,β,γ,δ-Tetrakis(1-methylpyridinium-4-yl)porphyrin p-Toluenesulfonate] [Ultra-high sensitive spectrophotometric reagent for Cu, Mg] [For the simultaneous determination of metals by HPLC]TMPyP [=α,β,γ,δ-四(1-甲基吡啶嗡-4-基)卟啉对甲苯磺酸盐] [铜和镁用超高灵敏分光光度试剂][用于以HPLC进行的金属同时测定]