Dicussion on the total precision of 0.05A~2 in coal sample preparation and analysis;

Study on sample preparation and fiber counting of the blending ratio testing of ramie/cotton blended yarn;

The tests on sample preparation units of train loading spot in Tangkou coal mine

Constructively Study on sampling methods of industial briqutte whose ash content of dry basis is less than 30%;

Sampling Condition of Acari(Acari:Acaroidea) for the Isozymes;

The pig iron sampling method for X-ray fluorescence spectrum analyses is discussed and the Simultix 11 type X-ray fluorescence spectrum is used to qu ickly analyze the pig iron on-the-spot sample.

This paper presents the cause of the false image of sample preparation,some of conditions influenced on sample preparation results,many factors influenced on materials remove and matters needing attention in modern sample preparation technology,while some related traditional wrong knowledge would be corrected.

Based on these problems , authors gave a minute description of sample preparation , adhesive , rendering coat mortar , mechanical fixings site drawing and coefficient of thermal conductivity.

The process of sample preparation and gold separation?enrichment and determination was discussed briefly.

This paper introduces the effect of the preparation of sample which includes concentration of sample,volume of sample,sample dissolved and using antioxidant in sample,to the analytic result,when the molecular weight of polyolefin is measured by Gel Permeation Chromatography.

Reason analysis of deviation in sampling and preparation of commercial coal;