Ultramicro Spectrophotometer YR07037 – YR07038

It uses a xenon flash lamp that does not require preheating and a 2048-pixel CCD detector. According to the provided technical sheet, it measures in the range of 190 to 1100 nm and can complete a reading in approximately 5 seconds. For microvolume analysis, it requires between 1 and 2 µL of sample, with no dilution in compatible applications.

The screen and USB storage allow for operation without a computer, reviewing previous results, and exporting data. Its compact size —220 × 280 × 220 mm— and net weight of 3 kg make it easy to locate or move within the laboratory. The received sheet indicates two screen sizes, 7″ and 2.7″; it is advisable to confirm which corresponds to each model before publishing the variant.

Market Price

The price depends on the brand, the condition of the equipment, the included features, support, and warranty. As an international reference, refurbished or used microvolume devices are found around USD 5,850, while a comparable new high-end model is listed at USD 14,450. These values serve as guidance and do not represent the price of Kalstein models, which must be confirmed through quotation.

To know the current price, availability, delivery time, and shipping conditions of the YR07037 or YR07038, you can request a quotation from the Kalstein team or generate an automatic quotation on the Kalstein Plus platform.

Frequently Asked Questions

What sample volume is needed?
The sheet indicates a minimum volume of 1 µL; for certain analyses, it is recommended to work with 1–2 µL.

Does it need to connect to a computer?
Not necessarily. The device allows for data review and storage on its own interface and transfer via a USB drive. It also has USB ports for compatible peripherals.

What types of analyses can it perform?
The sheet mentions analyses of nucleic acids and proteins, kinetics, spectral scanning, cell concentration, endpoint, and OD600.

How long does a measurement take?
The indicated time is approximately 5 seconds. The total analysis time may vary depending on sample preparation and the method used.

What is the difference between YR07037 and YR07038?
The received information describes versions with 7″ and 2.7″ screens, but does not clearly specify which screen corresponds to each code. It is recommended to confirm this correspondence before choosing or publishing each variant.

Advantages and Considerations

Among its advantages are the low sample volume, fast reading, operation without preheating of the lamp, compact design, and the ability to save or export results via USB. Its features make it useful for routine analyses in research and control laboratories.

As a consideration, the microvolume format is designed for samples and applications compatible with its measurement method; it does not necessarily replace a conventional spectrophotometer with cuvettes for all assays. Additionally, the device requires a stable surface and careful cleaning of the measurement area. The compatibility of each method and the correspondence between screen and model must be confirmed with the specific sheet of the variant.

Laboratory Use

In molecular biology, it can be used to quantify DNA or RNA before procedures such as PCR and sequencing, as well as to evaluate proteins in small samples. In microbiology, the OD600 reading can help monitor the growth of cultures, always following the corresponding protocol. To obtain consistent results, it is recommended to homogenize the sample, use an appropriate micropipette, and clean the measurement surface between readings.

Recommendations

Place the instrument on a level surface, use a power supply compatible with its specifications, and avoid spills on the optical area. Clean the measurement surface after each use following the manufacturer's instructions. To compare results, keep the method, volume, and sample preparation conditions constant. Consult the manual to verify the applicable calibration, validation, and maintenance procedures for each assay.