Lesson 1 : Pipets

Question 1

This are glass or plastic utensils used to transfer liquids, they may be usable or disposable.

Answer 1

Pipet

Question 2

This design in pipet holds a particular volume but does not dispense an exact volume.

Answer 2

TC / To contain

Question 3

This design in pipet will dispense the volume indicated.

Answer 3

TD/ to deliver

Question 4

Enumerate the 5 measuring/ graduated Pipets.

Answer 4

1. Serologic
2. Mohr
3. Bacteriologic
4. Ball, kolmer or kahnn
5. Micropipette

Question 5

What are the 2 drainage characteristics of pipet?

Answer 5

Blow out pipet & Self-draining pipet

Question 6

Enumerate the 4 transfer pipets that are usually used.

Answer 6

1. Volumetric
2. Ostwald - Folin
3. Pasteur Pipet
4. Automatic macropipets

Question 7

This is a automatic pipet that dispenses < 1000 uL .

Answer 7

Micropipette

Question 8

This type of pipet has continuous etched ring or two small, close continuous rings located at the top/ neck of the pippet last drop should be expelled into the receiving vesel.

Answer 8

Blow Out Pipet

Question 9

This type of Pipets contents of the pipets are drain by gravity. The tip of the pippet should not be in contact with the accumulating fluid in the receiving vesel during drainage.

Answer 9

Self-draining pipet

Question 10

This type of measuring/ graduated does not have graduation to the tip , Self-draining Pipet , should be allowed to touch the vessel while the pippet is draining.

Answer 10

Mohr Pipet

Question 11

This type of measuring/ graduated pipet has graduation mark to the tip , Blow Out Pipet.

Answer 11

Serological Pipet

Question 12

This type of Pipets that holds a volume<1 ml : maybe designed as either mohr or serologic pipet.

Answer 12

Micropipette

Question 13

This type of Pipet is used with biological fluids having a viscosity greater than that of water and it has a 2 etched continuous ring at the top.

Answer 13

Ostwald- Folin

Question 14

This type of Pipet is used to dispense aqueous solution.

Answer 14

Volumetric pipet

Question 15

This type of Pipet do not have calibration marks and are used to transfer solutions or body fluids with out consideration of a specific volume.

Answer 15

Pasteur Pipet

Question 16

This type of Pipet are the most frequently used in clinical chemistry laboratory.This implies a mechanism that draw up & dispenses the liquid.

Answer 16

Automatic Pipet

Question 17

What are the advantages of Automatic Pipet?

Answer 17

√ Safety
√ Stability
√ Ease of use
√ Increased Precision
√ less cleaning required

Question 18

This type of Pipet has only volume is dispense can range 1 uL - 5000 mL.

Answer 18

Fixed Volume pipet

Question 19

This type of Pipet relies on a prison for creating suction to draw the sample into a disposable tip that must be changed every after use.

Answer 19

Air Displacement pippet

Question 20

This type of Pipet operates by moving the priston in the pippet tip or barrel, similar with a hypodermic syringe.

Answer 20

Positive Displacement pippet

Question 21

This are automatic Pipets that obtain liquid from a common reservoir and dispense it repeatedly.

Answer 21

Dispensers and Dilutor / Dispenser