DHI detector

【Milk ingredient onlineIntroduction:

The milk component somatic cell detection online is a NEXGEN series product from Bentley Instruments, representing over 20 years of ultra-high level. It is a cutting-edge product using new technology and can automatically detect 150-600 milk samples per hour. This product is manufactured according to the rigorous and meticulous design principles of Bentley Instrument Company, and can perform accurate measurements. The Bentley NexGen product consists of two units: a Bentley flow cytometer and a Fourier transform spectrometer. While FTS detects fat, protein, lactose and other components in milk samples, FCM detects the number of somatic cells in milk samples. Mix the milk sample first, and then inhale it into these two detection units from the sample cup. Use an automatic sampler to sample, sort, and identify samples.

【Milk ingredient onlineTechnical Executive Summary

The FTS unit analyzer for milk component somatic cell detection online uses a Fourier transform spectrometer (FTIR) to obtain the infrared absorption spectrum of the complete milk sample for component analysis. Collecting complete spectra allows for calibration based on the spectral characteristics of each component. Infrared spectra are stored for a long time so that they can be traced and applied for future calibration.

The FCM unit is a new generation of innovative products developed from the world-renowned Bentley somatic cell detection instrument. Through highly stable solid-state laser induced fluorescence, this unit can provide accurate and timely warnings for the occurrence of breast inflammation.

The NexGen series equipment utilizes cutting-edge automatic milk ingredient detection and somatic cell detection technologies.

The NexGen series devices consolidate the operations of FCM and FTS units into a single Windows software program. The simple and intuitive operation interface makes it easy for operators to get started. This software has advanced data output and reporting functions, as well as laboratory management personnel can remotely monitor instrument status and analysis results through the network.

NexGen collects a large amount of diagnostic information, allowing users to confirm that the instrument is operating at its optimal state when obtaining sampling data. Therefore, every time a sample is taken, a complete set of diagnostic readings is saved, and during the data collection process, the status of the instrument is verified through auditing and tracking. Before sampling, the sample is stirred and temperature values are measured and recorded. In addition, an external temperature probe is provided for users to use in the water bath constant temperature chamber, and the temperature is recorded every time the sample is taken. Examples of other diagnostic information include various critical temperatures, optical system positioning, laser power, pump characteristic pressure curves, humidity, air pressure inside the FTS optical cover, and the condition of the instrument after impact and vibration.

Application modularization

The main program includes the detection of components such as fat, protein, total solids, and somatic cells. The system is designed to be used in dairy laboratories that require the execution of 150-600 sample tests per hour and require equipment with high reliability and precision. The infrared Bentley FTS analyzer is designed with speed and detection as its design principles, using an interferometer as a solid core module and applying spectroscopic technology that meets research level requirements. According to the development needs of the dairy industry, detection application modules such as freezing point, urea nitrogen, citric acid, fatty acids, free fatty acids, casein, acetone, lactoferrin, etc. can also be added. The NexGen system has evolved into a form of "meeting future needs" to meet the requirements of some users and government personnel who may upgrade in the future, enabling instruments to detect additional indicators for viewing detailed milk analysis information.

【 Main Features 】

This is a more reliable and user-friendly instrument.

A fast and large-scale milk detection unit and somatic cell counting unit can be configured according to user needs to detect 150-600 samples within one hour.
The original absorbance spectra and peak release curves are stored in the system for a long time, and users can output and analyze them.
Composition measurement is based on a complete infrared spectrum and uses a multivariate calibration algorithm based on *.
The LED on the front panel indicates a "snapshot" of the instrument status.
The dual channel flow cytometer is capable of acceleration and redundancy.
Solid state lasers have the characteristics of strong functionality and high reliability.
Use heated flushing solution to automatically clean and reset the instrument.
A user-friendly graphical user interface (GUI) that makes it easy for operators to operate and use.
The built-in expert system allows users to monitor the functionality of the instrument in real-time.
A large amount of diagnostic information is recorded and saved, documenting the health status and execution of the system.
Data and detection results can be accessed and read through a network connection.
The remote control function can solve problems one by one from anywhere in the world.
Multiple types of data output methods are available for selection, including floppy disks, serial ports, parallel ports, and network connections. And it is easy to format according to existing systems.
The somatic cell analyzer exceeds the technical requirements of IDF 148A standard and ICAR, while the composition analyzer exceeds the technical requirements of IDF 141C: 2000 standard and ICAR. The method has been approved by AOAC.
Ergonomic display and keyboard that are easy to adjust for individual situations.
The Windows application software can simultaneously control, collect data, perform detection and analysis, archive data, and generate reports for both FTS and somatic cell analyzers.
The interferometer using laser technology is installed in a sealed and temperature adjustable optical chamber.
The internal heater provides automatic cleaning and zeroing functions.
A complete and independent dual channel cell counter can perform rapid and large-scale detection, and can operate redundantly.
High power, long-life solid-state semiconductor lasers are convenient for exciting fluorescence.
The suction tube with laser perforation filters milk samples at the inlet.
During the process of stirring the sample, record the temperature. The automatic sample feeder uses non-contact optical sensors to control the movement position of the guide rail frame, sorts and pre stirs the samples, and then transports them into the instrument. It can perform more than 600 sample tests per hour.
Automatically record sample identification through barcode or RFID reader.
Equipped with rails and sample bottles of all standards and sizes.
The LED indicator on the front panel provides intuitive visual feedback to the operator to indicate the overall status and operation of the instrument.

Real time milk quality analysis and reporting

The NexGen series instruments can provide analysis reports in a short period of time. The test results can be displayed on the screen, as well as exported and archived in any format for future analysis.

As shown in the figure, the raw data for milk ingredient detection is the complete FTIR spectral absorbance. Use the multivariate calibration algorithm of * to extract relevant component information. The spectra will be archived and stored for future reference, and users can also output these spectra for further analysis.

This image is a detailed summary of a sample, including the batch and identification of the sample, as well as the measured component values.

The software system will provide real-time diagnostic information for each sample. The figure shows the infrared spectrum and pump pressure characteristics. Users can easily switch between different views through the tab options at the top of the screen.

The use of IDF bucket plots can easily verify the repeatability of component values.

By using the histogram of pulse amplitude and width of FTS in somatic cells shown in the figure, the numerical values of somatic cells can be obtained.

The regression analysis chart of a set of reference values for calibration samples obtained through measurement is shown in the figure to verify accuracy.

The figure shows an example of the accuracy of Somacount FCM

This indicates that only data within the blue light band will be collected

The filtering analyzer. FTS conducts component analysis through complete infrared spectroscopy.

Remote diagnostic function

The NexGen series instruments have the characteristic feature of being able to access and diagnose machines from anywhere through the network. This allows laboratory personnel to collaborate with Bentley personnel to analyze the functionality of all systems.