Spiral Plater/Diluter
Spiral platers/diluters distribute samples in a spiral pattern onto Petri dishes and can also perform serial dilutions. They are used for quantitative microbiological analysis, especially CFU determination.
Product
Spiral Plater/Diluter
Spiral platers/diluters distribute samples in a spiral pattern onto Petri dishes and can also perform serial dilutions. They are used for quantitative microbiological analysis, especially CFU determination.
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Guide and selection support
Spiral platers/diluters are primarily used in microbiological investigations to precisely and reproducibly dispense liquid samples onto Petri dishes in a spiral pattern. The dilution function allows automation of serial dilutions, which supports the quantification of microbial contamination.
When choosing a device, key aspects include dilution accuracy, compatibility with Petri dishes, and ease of use. Devices differ in their level of automation and ability to process various sample volumes.
LabFinder provides a structured overview of spiral platers/diluters, enabling easy orientation and comparison of available equipment and technical specifications.
Application and Benefits
Spiral platers/diluters are used in microbiology to evenly distribute liquid samples across Petri dishes through spiral plating. This is mainly for the quantitative determination of colony forming units (CFU) after incubation. A spiral diluter extends this application by enabling highly precise serial dilutions. These devices allow for standardized sample preparation, frequently used in research, clinical diagnostics, and microbiology.
Selection Criteria
Important considerations include the required accuracy of dilution steps, compatibility with different Petri dish sizes, and the user-friendliness of the device. Flexibility regarding sample volumes and the speed of plating can also be crucial. Devices with programmable parameters offer greater customization, while manual models may be more cost-effective.
Variants and Operating Principle
Most spiral platers operate by mechanical or motor-driven means to dispense the sample in a spiral line. Spiral diluters additionally perform automatic dilution series, managed electronically or mechanically. Variants differ in their level of automation, available dilution steps, and operating concepts.
Calibration and Maintenance
Regular checks of dispensing accuracy and proper maintenance of dispensing mechanisms are essential for reproducible results. Manufacturer recommendations for calibration intervals and cleaning should be followed to ensure reliable diluting and plating performance.
Limitations of Use
Spiral platers/diluters are mainly suitable for liquid samples within defined volume ranges. They are not suitable for all sample types, such as highly viscous media or solid samples. Additionally, they are designed for use with Petri dishes and are incompatible with other plating formats. This technology is intended for samples where serial dilution and plating are appropriate.
Search Terms and Related Terms
Spiral diluter, spiral plater, spiral dilutor, spiral spreader, spiral plating instrument, CFU spiral plater, microbiological plating, serial dilution, colony counting, microbial cultivation, Petri dish plating, spiral cell distributor.
Also known as
Colony counter spiral device
Serial spiral diluter
Spiral cell distributor
Spiral diluter
Spiral diluter for Petri dishes
Spiral dilution device
Spiral dilutor
Spiral plater
Spiral plating instrument
Spiral spreader
Related categories
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Frequently asked questions
How does a spiral plater/diluter work?
A spiral plater dispenses a liquid sample in a spiral pattern onto a Petri dish, while a spiral diluter can also automate serial dilutions. After plating and incubation, the number of microbial colonies can be determined.
What types of spiral platers/diluters are available?
There are manual and automated models. Automated devices typically offer programmable dilution levels and variable plating speeds, while manual units are simpler and more affordable.
What should I consider when choosing a device?
Important aspects are dilution accuracy, compatibility with Petri dishes, handling, and potential automation functions. The right choice depends on required throughput and application.
Which samples are suitable for use with spiral platers/diluters?
They are suitable for liquid microbiological samples where quantitative analysis by CFU counting is needed. Highly viscous or solid samples are less suitable.
What maintenance is necessary?
Regular calibration of the dispensing mechanism and cleaning of the dispensing parts are necessary to ensure precise results and long-term operational reliability.
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