Chemical sensor for detecting sulfide, hydrogen sulfide detection kit including same, and method for preparing same

A method for preparing a sulfide ion-selective chemical sensor, comprising:

• a step of conducting reaction by mixing a ferrocene starting material with one or more organic compound selected from nitrile (CN), methyl ester (CO2Me) and ethyl ester (CO2Et) at an equimolar ratio in a solvent;
• a step of obtaining a ferrocene-based compound of Chemical Formula 1 by filtering a solid product produced from the reaction and removing the solvent under reduced pressure:
• wherein each of R1 and R2 is independently an organic compound selected from nitrile (CN), methyl ester (CO2Me) and ethyl ester (CO2Et) and, R1 and R2 may be identical to or different from each other;
• and
• a step of dissolving the compound represented by Chemical Formula 1 0.001-1.00% (w/v) in one or more organic solvent selected from saturated or unsaturated hydrocarbons, ethers, esters, alcohols, amines and ketones.

A hydrogen sulfide detection kit comprising:

• an airtight container comprising an opening/closing door and a detection material inlet;
• a detection unit which is provided inside the airtight container and composed of paper or fabric to which a ferrocene compound is adsorbed;
• and
• a basic reagent which is stored inside or outside the airtight container and generates sulfide ion from hydrogen sulfide,
• wherein the ferrocene compound is represented by Chemical Formula 1:
• wherein each of R1 and R2 is independently an organic compound selected from nitrile (CN), methyl ester (CO2Me) and ethyl ester (CO2Et).

A method for detecting hydrogen sulfide using a detection kit comprising an airtight container comprising an opening/closing door and a detection material inlet, a detection unit which is provided inside the airtight container and composed of paper or fabric to which a ferrocene compound is adsorbed, and a basic reagent which generates sulfide ion from hydrogen sulfide, wherein the ferrocene compound is represented by Chemical Formula 1:

• wherein each of R1 and R2 is independently an organic compound selected from nitrile (CN), methyl ester (CO2Me) and ethyl ester (CO2Et),
• wherein
• the basic reagent is coated or introduced into the detection unit,
• a part of the detection unit is drawn out of the airtight container by partially opening the airtight container and then is exposed to hydrogen sulfide solution or hydrogen sulfide gas, or hydrogen sulfide solution or hydrogen sulfide gas is introduced into the inlet, and
• the presence of hydrogen sulfide is judged by the color change of the detection unit from violet to yellow.