Water test paper and multifunctional detection test kit

A multifunctional detection test kit for water, comprising:

• a multifunctional detection test paper which comprises a base and a plurality of test modules,
• wherein the base comprises a base layer and a hydrophobic layer formed on a surface of the base layer, wherein the hydrophobic layer has a plurality of test zones spaced apart from each other;
• wherein the test modules are provided on the test zones of the hydrophobic layer respectively to separate the test modules from the base layer;
• wherein the test modules are configured to detect at least one of pH value, total alkalinity, cyanuric acid, total chlorine, bromine, free chlorine water hardness, lead, iron, copper, nitrite, nitrate, microplastics, nickel, and phosphate;
• wherein the base layer is made of Polyethylene Terephthalate;
• wherein the hydrophobic layer is formed by coating a coating solution on the base layer, wherein the coating solution is a mixture of an organosilicon compound, a modifying agent and a molding agent, wherein the organosilicon compound comprises one or more of dodecylsilane, tetradecylsilane, cetyltrimethoxysilane, octadecylsilane, dimethyloctadecylchlorosilane, and methacryloxypropylsilane, wherein the modifying agent comprises one or more of hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, acetic acid, oxalic acid, citric acid, and salicylic acid, wherein the molding agent comprises one or more of sodium hydroxide, lithium hydroxide, ammonia, sodium bicarbonate, sodium acetate, sodium citrate, and potassium citrate.