Mercury

Mercury

Held fascination for the ancient alchemist but its worth was found in economic enterprises over the years. It has been used in medicine, agriculture and industry for a wide variety of purposes. Its use as a catalyst in the plastic industry as well as numerous incidents of poisoning have served to focus on the hazard it represents in the physical environment. A finding of particular interest in the Minimata poisoning incident in Japan was that this metal, like some others, may be methylated in the environment to pose an even greater hazard through bioaccumulation and intrinsic toxicity.

Arsenic

Arsenic

It is to be found in geological formations from whence it may be leached into water supplies. It also finds its way into the environment through activities such as mining, smelting, and to a lesser extent in recent years, through the use of inorganic arsenic. It is both toxic and carcinogenic.

Asbestos

Asbestos

Asbestos fibres escape into the environment during mining and manufacturing processes as well as in construction. It may be found in water and air to which humans will be exposed. It has also been demonstrated that there may be a familial exposure. Asbestos is a source of concern because of its production of neoplasms and particularly mesothelioma.

HERBAL for MEDICINAL

HERBAL FOR MEDICINAL

Aloe barbadensis mill

It grows mainly in the dry regions of Africa, Asia, Europe and America. Aloe latex or juice, usually in its dried form, is used as a potent laxative. Aloe gel is used both externally and internally for its wound-healing properties and as a general tonic or cure-all.

High Pressure Liquid CHROMATOGRAPHY

High Pressure Liquid CHROMATOGRAPHY or HPLC.
was the separation method where the still phase was placed in the column.
The tip of the other column was connected in the exerting pressure eluen
temperature.
The implement:
- Chromatography consisted of the system to channel the phase gram.
- the Place to put the substance that will be checked.
- the chromatography Column.
- the detection system  and the registration

The procedure:
- the Phase gram was pumped with the pressure from one or more reservoir in the column with the rate of the constant current.
- the Composition and the rate of the current from phasegram was stated in chromatography.
- the Solution to the test was put in the door to the injection (in being wrong one from three roads) :
a.Injection the valve was with the certain volume put used the hole injector.
B.Injection the varying volume valve was put used the injection valve.
C.Injection on coulomb where the varying volume was put used the injection implement through the partition.