Instrumentation Flashcards
Highly resistant to alkali
Boron-free software
6x stronger than borosilicate
Corex
High thermal range (900 degrees)
Vycor
Made up of soda-lime glass
Flint glass
Pipet that delivers the exact amount of fluid
To deliver pipet
Pipet that holds a particular volume but does not dispense the exact amount
To contain pipet
It has a continuous etched rings on top of the pipet; exact volume is obtained
Blowout pipet
Absence of etched ring; liquid is allowed to drain by gravity
Self-draining pipet
For nonviscous fluids; greatest degree of accuracy and precision
Volumetric pipet
For viscous fluid; with etched ring
Ostwald-folin
Transfers fluid without the consideration of specific volume
Pasteur pipet
With graduations to the tip
Serologic pipet
No graduation up to the tip
Mohr’s pipet
Piston does not come in contact with fluid; uses disposable tips
Air displacement
Operates by moving the piston in the pipet tip, much like a hypodermic syringe. Does not require a different tip
Positive displacement
Pipet recommended by WHO for sperm count
Positive displacement
Combines sampling and dispensing functions
Dispenser/Dilutor pipet
Used to calibrate to contain pipets
Mercury
Used to calibrate to deliver pipets
Distilled water
Used to verify pipette volume accuracy and precision
Gravimetric and spectrometric methods
What are pipet tips made of?
Polypropylene
Samples flow through a common reaction vessel; air bubbles at regular intervals serve as separating and cleaning media
Continuous flow analyzer
It uses force generated by centrifuge to transfer specimen and reagents
Centrifugal analyzer
Measures only the tests requested on samples; allow stat and random acces
Discrete analyzer
Principle of dry slide technology
Reflectance photometry
Is the measurement of light reflected from solid surfaced
Reflectance photometry
All samples are loaded at the same time and a single test is done on each sample
Batch testing
More than one test is analyzed concurrently on a given specimen
Parallel testing
Any test can be performed on a sample at any sequence
Random access testing
Multiple tests are analyzed one after another
Sequential testing
A system other than manufacturer’s reagents can be used
Open reagent system
A system whete the operator can only use the manufacturer’s reagents
Closed reagent system
Provides point to point delivery of specimens
Pneumatic tube delivery system
Most commonly used glassware
Borosilicate
