用台式同位素源X射线荧光分析仪测定水泥样品中的CaO和Fe

2

O

3

含量，分析精确度分别为0.14%和0.02%。仪器分析值与化学分析值对照，两者偏差在±0.25%CaO内的约占80%，在±0.10%Fe

2

O

3

内的占90%以上。用仪器测定 "出磨水泥"及入磨原料中的CaO以后，便可计算出其中的熟料掺入量，偏差小于1.5%。

A desk instrument of radioisotope X-ray fluorescence analysis is described

which has been used to determine the content of CaO and Fe

2

O

3

in cement specimens

with an precision of 0.14% and 0.02% respectively. The comparison between the results of instrumental and chemical analysis shows that

the specimens of which both results are agreeable within ±0.25% deviation for Cao and within ±0.10% deviation for Fe

2

O

3

amount to about 80% and above 90% of the total respectively. After the determination of CaO content in the "ground cement" and its raw material

the examination of clinker component can be performed

with an error less than 1.5%.