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Guangzhou Hongke Electronic Technology Co., Ltd
Laboratory Topic | Say goodbye to "relying on feelings"! This turbidity meter makes drug and food testing more accurate!
Date: 2025-10-16Read: 22
Guide
In the fields of drug production, microbiological testing, food safety monitoring, etc., precise control of microbial concentration is the core link to ensure product quality and safety. whether it isVaccine potency determination、Antibiotic sensitivity testStillMicrobial limit testing in foodThe rapid and accurate determination of bacterial or yeast suspension turbidity (McFarland units) is indispensable.
The turbidimeter was born for this purpose - it measures the degree of light scattering by cell suspensions and quickly evaluates microbial concentration in a non-contact mannerStandardized operationandReliable resultsProvide solid support.
🌱 The working principle of the Grant turbidity analyzer
The Grant turbidity analyzer is internationally recognizedMcFarland StandardAt a specific wavelength, the turbidity of a regularly dispersed microbial suspension is linearly positively correlated with cell concentration.
The precision optical system captures the scattered light signal in the 90 ° direction of the sample and instantly converts it into a visual representationMcF valueTo achieve concentrationDigitization and traceabilitymeasurement.
Two core models to meet different scenarios
one ️⃣DEN-1 basic model
Stable performance, can be used immediately after power on
two ️⃣DEN-1B Upgraded Version
Dual power supply mode: Supports battery or power cord power supply
Intelligent standbyAutomatically turn off the screen after 1 minute of idle time, press the "On" button to instantly wake up
Sample addition requirements
Flat bottomed tube: The liquid level is ≥ 7mm higher than the bottom of the tube
Round bottom tube: The liquid level is ≥ 12mm higher than the bottom of the tube (approximately ≥ 2ml is required for 16mm tubes)
Insufficient sample addition can lead toMeasurement failure or decreased accuracy
Best measurement range
Nominal range: 0.00-15.00 McF
Recommended range: 0.0-6.0 McF (approximately 0-1.8 × 10 ^ 9 cells/ml)
At the high concentration end, the error may significantly increase
summary
Dot Grant DEN-1 and DEN-1B turbidimeters, relying on theirAccurate measurement capability of Maxwell turbidity、Ultra fast detection speed、User friendly operating experience、Flexible sample tube compatibilityAnd the competitive cost-effectiveness of imported brands has become a tool for drug microbiological testing, clinical diagnosis, food safety monitoring, and basic research. Combining the professional and fast technical support services provided by Diancheng Biology, Diancheng Grant Turbidity Analyzer is designed for various laboratories in pursuit of excellenceEfficient, accurate, and compliantOn the road of quality control, we provide reliable solutions.