Question

Write any three advantages of the autoanalyzer?

Answer 1

Hint: Auto analyser is an automated analyser.
They are used to check enzymes substrate, electrolytes, proteins, drugs, etc by physicians.
It consists of a sampler, pumping machine, dialyzer, haeting bath, colorimeter, and recorder.

Complete answer: Advantages of autoanalyser:
1. High accuracy - auto analyzers have more accuracy than the manual method.
2. Time-saving - a large number of samples can be taken which minimizes the time.
3. Flexible - two or more than two tests may be performed simultaneously.
4. No requirement of calculation.

Additional information: Autoanalyzer: The Autoanalyzer is an automated analyzer using a flow technique called continuous flow analysis (CFA).
Segmented Flow Analysis (SFA) first made by the Technicon Corporation. The design is based on segmenting a continuously flowing stream with air bubbles.
It consists of:
1. Sampler: Aspirates samples, standards, wash solutions into the system
2. Proportioning pump: Mixes samples with the reagents so that proper chemical color reactions can take place, which is then read by the colorimeter
3. Dialyzer: separates interfacing substances from the sample by permitting selective passage of sample components through a semi-permeable membrane
4. Heating bath: Controls temperature (typically at 37 °C), as the temp is critical in color development
5. Colorimeter: monitors the changes in the optical density of the fluid stream flowing through a tubular flow cell. Color intensities proportional to the substance concentrations are converted to equivalent electrical voltages.
6. Recorder: Displays the output information in a graphical form.

Note: Autoanalyzers are also commonly used in soil testing laboratories, fertilizer analysis, process control, seawater analysis, air contaminants, and tobacco leaf analysis.