Keywords colloidal gold;biomarkers;sodium citrate-tannin reduction;sodium citrate reduction;ascorbic acid reduction;sodium borohydride reduction;

• 胶体金;生物标记;柠檬酸钠-鞣酸还原法;柠檬酸三钠还原法;抗坏血酸还原法;硼氢化钠还原法;