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JOURNAL OF MOSQUITO RESEARCH
74
2. The solution is shaken until smooth and kept in a
dark bottle.
2.6 Lead citrate (Reynold, 1963)
1. Dissolve 1.33 of lead nitrate (Lead nitrate) and 1.76
grams of distilled water into a glass beaker.
2. Shak the flask well for one minute the turbidity
severe white where consists
2.7 Continued shaking (once every five minutes
during half-hour)
1. Add to the flask 8 cm
3
of (1 N Sodium hydroxide)
free of carbonates with shake.
2. A size until 50 cm
3
and add distilled water.
3. A good solution is filtered before use. It can be
saved at room temperature for a period of six months
of preparation.
2.8 Resin material
Following materials were used in the preparation of
this plastic material:
Landfill Resin: SPI-EPON 812, 10 g; Araldite 502, 10 g;
DDSA (Dodecenyl Succinc Anhydrite), 24 g; DMP-30
(Dimethyl almmo methyl phenol), 0.7 g. All of this
materials are shaking well before using, all of them
from SPI-CHEM, USA Company.
It has been prepared at electron microscope Research
Center at King Saud University.
References
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