How do you collect dust samples to observe with a microscope? If the dust has settled on a smooth surface, you can collect it with a clean finger, or you can transfer it onto a microscope slide with a small brush. Perhaps, the best way is to use a pipette to apply water on the dusty surface and then collect your sample using the pipette . You can repeat this operation several times using the same water until you have collected a sufficient quantity of dust suspended in the water. Another method is to place a microscope slide in a selected location and wait until enough dust has settled on it. Obviously, you should not be in a hurry if you are going to use this method of sampling! If the quantity of available dust you want to collect is small and you do want to avoid contaminating it, you can use an adhesive tape to collect your sample.
Yet another method consists in using a vacuum cleaner with a filter placed over the intake of the hose. If the filter causes too much of a restriction, this can strain the motor of the vacuum cleaner and eventually burn it out. To avoid damaging your vacuum cleaner, you should use a porous filter media, or allow some air to bypass the filter. It is possible to find vacuum cleaners on the market that are equipped with a specially liquid chamber to filter the air. If you have one of these units, after cleaning your carpets, you can collect a sample of the water collected in the filter unit and observe the particulate material in suspension in the water.
To collect dust outfall in the open air, you can use a flat surface. To prevent the wind from blowing your sample away, this surface must be shielded by protective baffles. To accomplish this, a small plastic aquarium is suitable. To avoid collecting rain, you can place a lid at about 40 cm above the container. In any event, such a lid, you will not allow you to collect micrometeors. To do so you can observe the particles that collect in the water spout of your house.
Bear in mind that dust can also contain bacteria and other microorganisms. So, when you are handling samples of dust, whether dry or humid, you should always observe proper hygiene measures like wearing latex or rubber gloves and washing your hands after handling any potentially contaminated dust or materials.
How do you collect dust samples to observe with a microscope? If the dust has settled on a smooth surface, you can collect it with a clean finger, or you can transfer it onto a microscope slide with a small brush. Perhaps, the best way is to use a pipette to apply water on the dusty surface and then collect your sample using the pipette . You can repeat this operation several times using the same water until you have collected a sufficient quantity of dust suspended in the water. Another method is to place a microscope slide in a selected location and wait until enough dust has settled on it. Obviously, you should not be in a hurry if you are going to use this method of sampling! If the quantity of available dust you want to collect is small and you do want to avoid contaminating it, you can use an adhesive tape to collect your sample.Yet another method consists in using a vacuum cleaner with a filter placed over the intake of the hose. If the filter causes too much of a restriction, this can strain the motor of the vacuum cleaner and eventually burn it out. To avoid damaging your vacuum cleaner, you should use a porous filter media, or allow some air to bypass the filter. It is possible to find vacuum cleaners on the market that are equipped with a specially liquid chamber to filter the air. If you have one of these units, after cleaning your carpets, you can collect a sample of the water collected in the filter unit and observe the particulate material in suspension in the water.To collect dust outfall in the open air, you can use a flat surface. To prevent the wind from blowing your sample away, this surface must be shielded by protective baffles. To accomplish this, a small plastic aquarium is suitable. To avoid collecting rain, you can place a lid at about 40 cm above the container. In any event, such a lid, you will not allow you to collect micrometeors. To do so you can observe the particles that collect in the water spout of your house.Bear in mind that dust can also contain bacteria and other microorganisms. So, when you are handling samples of dust, whether dry or humid, you should always observe proper hygiene measures like wearing latex or rubber gloves and washing your hands after handling any potentially contaminated dust or materials.
การแปล กรุณารอสักครู่..