Hanna HI83730-01 Photometer for Determination of Peroxide Value in Oils

Description

The Hanna HI83730 is a portable photometer designed for the accurate and simple determination of peroxide value in edible oils. It utilizes a sophisticated optical system, incorporating a special tungsten lamp and a narrow band interference filter, which ensures precise and consistent readings. This device is an auto-diagnostic microprocessor meter, which automatically adjusts light levels and controls the lamp temperature to maintain optimal measurement conditions for high-precision results. It comes with pre-made reagents for 10 tests, making it ready to use. The HI83730-01 model is a reliable solution for anyone needing to quickly assess oil quality.

The HI83730 photometer features a built-in timer, an auto-shutoff function, and easy-to-use reagents, making it very user-friendly. The exclusive cuvette locking system guarantees that the sample is placed in the same position every time, ensuring a consistent path length for accurate photometric readings. The device also has a zero key to account for any existing color or imperfections in the oil sample before the reagents are added, ensuring the highest accuracy. With its ability to measure peroxide values up to 25.0 meq O2/kg, the HI83730 is an essential tool for monitoring the quality and degradation of edible oils.

The Science Behind the Measurement

The HI83730 photometer measures peroxide value based on the principles of the Beer-Lambert Law. The instrument uses an adaptation of the EC 2568/91 method for its measurements. When the reagent is added to the oil sample, a chemical reaction occurs, causing the sample to develop a yellow color. The intensity of this yellow color is directly proportional to the concentration of peroxides in the oil. The instrument then uses its optical system, which includes a tungsten lamp and a narrow band interference filter at 466 nm, to analyze the color change. This system detects only blue light, and as the yellow color of the sample deepens, the absorption of this specific wavelength of blue light increases, while its transmittance decreases. This allows the meter to accurately calculate and display the peroxide value.

Assessing Quality and Rancidity in Oils

The primary application of the HI83730 photometer is to assess the quality of edible oils by measuring their peroxide value. Peroxides are the initial products of oil oxidation, a process that leads to degradation and rancidity. A lower peroxide value indicates a higher-quality, fresher oil, while a higher value suggests that the oil has undergone significant oxidation and may be rancid. The HI83730 provides a quick and straightforward way to determine the level of oxidation. For example, a peroxide value of less than 10 meq O2/kg indicates excellent preservation, while a value greater than 20 meq O2/kg signifies that the oil is rancid.

Versatile Applications in Oil Production

The HI83730 photometer can be used in various settings, from small-scale producers to large commercial operations. It is particularly useful for quality control in the production of olive oil, where maintaining a low peroxide value is crucial for product quality. Producers can use the device to test different batches of oil to ensure they meet quality standards before packaging and distribution. Additionally, laboratories and research facilities can use the HI83730 for simple and precise analysis of oil samples. The portable design also makes it ideal for field use, allowing for on-site testing to quickly assess oil quality.

Precision and Reliability in Every Reading

The Hanna HI83730 is built to deliver consistently accurate readings. Its advanced optical system and automatic diagnostics ensure that all measurements are taken under optimal conditions. The auto-diagnostic feature ensures that the light level is automatically adjusted and the lamp temperature is controlled to prevent overheating. This meticulous design minimizes the risk of human error and external variables affecting the results. The device also provides useful error messages, such as “Light high” or “Light low,” which alert the user to potential issues with their sample preparation.

User-Friendly Features for Seamless Operation

The HI83730 is designed with the user in mind, featuring several functions that make it easy to operate. The built-in timer ensures that all measurements are taken after the correct reaction time, eliminating the need for a separate timer. An auto shut-off feature turns the meter off after 15 minutes of inactivity, saving battery life. The device also displays a battery status indicator and various error messages, providing clear feedback to the user. All these features contribute to a smooth and efficient testing process.

Ensuring Product Authenticity and Quality

When purchasing a specialized instrument like the HI83730, it is crucial to ensure its authenticity and quality. The online store TPT24 is the premier global retailer for this product, guaranteeing both its authenticity and quality. They offer worldwide shipping, ensuring that the product is delivered to you regardless of your location. TPT24 stands by the quality of their products, offering a warranty that covers defects in materials and workmanship. This assurance provides peace of mind for customers, knowing they are investing in a genuine and reliable product.

The Critical Role of Peroxide Value

The peroxide value of an edible oil is a key indicator of its freshness and stability. Oxidation is the primary cause of degradation in edible oils, and peroxides are the first compounds formed during this process. This process is influenced by factors such as exposure to light, the presence of metal ions, and storage temperatures. High levels of peroxides can lead to the formation of other compounds that result in off-flavors and undesirable odors, making the oil rancid and unpalatable. By measuring the peroxide value, producers can effectively monitor the quality of their oil throughout its shelf life, ensuring it remains suitable for consumption.

Maintaining Instrument Performance for Long-Term Use

Proper maintenance is key to the longevity and continued accuracy of the HI83730 photometer. The user manual provides detailed instructions on how to care for the device and its accessories. For example, it is essential to ensure the cuvettes are dry and free of fingerprints or dirt before each measurement to avoid inaccurate readings. Regular replacement of the batteries is also necessary to maintain optimal performance. Following these simple guidelines will help preserve the instrument’s accuracy and extend its useful life.