The results show that using the COD speed measurement to determine the wastewater is simple,convenient,fast and with good precision and high accuracy.

The rapid determination of the content of benzoic acid and sorbic acid in condiments;

The rapid determination of protein content in soy protein isolate;

Study on the rapid determination of water's TDS by using the Sension 5 portable electric conductivity instrument;

Quick determination of silicon in refractories;

Objective To establish a method for quick determination of pectin in pectin extract from Premna microphylla.

The daily quick determination of COD in wastewater can be achieved using HACH 45600 COD detector with self-made reagents instead of the special reagents of HACH.

Rapid Test of Co Element in Cobalt Oxalate by Potential Titration Method;

Objective To studya rapid test for Sudan 1 in chili powder with HPLC and discuss the interference source and the elimination of the source in the test so as to improve the accuracy and reliability in qualitative and quantitative.

The fast determination of the ammonia-nitrogen in the tannery wastewater;

Development and Application of a New Type of Testing Card──fast determination of potassium ion and chloride ion in tobacco;

This paper studied the fast determination method of SO2 residue in edible fungus and its affected factors.