VWR Capillary Bore 20UL PK100 3-33-325-20G Review

Let’s Dive into VWR Capillary Bore 20UL PK100 3-33-325-20G

The VWR Capillary Bore 20UL PK100 3-33-325-20G from VWR might seem like a small component, but it plays a vital role in precise liquid handling within a laboratory setting. These glass capillary bores are designed for use with VWR microdispensers, allowing for the accurate dispensing of 20 microliter volumes. Having spent years in both research and field labs, I understand the critical importance of reliable and accurate tools, even down to the smallest components.

My search for consistent and precise micro-volume dispensing led me to the VWR brand. I needed a dependable solution for preparing samples for gas chromatography, where even the slightest variation in volume can skew results significantly. The VWR Capillary Bore 20UL PK100 3-33-325-20G promised accuracy and consistency, which are paramount in my line of work.

Upon unboxing, the capillary bores appeared delicate yet well-packaged, arriving intact and ready for use. The glass construction seemed of good quality, and the black color-coding made it easy to identify them amongst other lab supplies. The precision evident in their design was immediately reassuring.

Compared to using disposable pipette tips or even manual micro-syringes, the capillary bore system offers a unique advantage in terms of minimizing dead volume and potential cross-contamination. While other brands of capillary tubes exist, I chose VWR based on their established reputation for quality and the availability of replacement parts for their microdispensers. My first impression was cautiously optimistic, hoping they would live up to the promise of consistent and precise micro-volume dispensing.

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Real-World Testing: Putting VWR Capillary Bore 20UL PK100 3-33-325-20G to the Test

First Use Experience

I primarily tested the VWR Capillary Bore 20UL PK100 3-33-325-20G in our analytical chemistry lab, where precise sample preparation is a daily requirement. My testing involved dispensing precise aliquots of organic solvents and aqueous solutions for various analytical techniques, including GC-MS and HPLC. The controlled lab environment allowed for careful observation of dispensing accuracy and repeatability.

Performance remained consistent even when working with solvents of varying viscosities and surface tensions. A key benefit was the ability to quickly and efficiently dispense numerous samples without the fatigue associated with manual pipetting. No immediate issues arose, and I was impressed with the initial ease of use and precision.

Extended Use & Reliability

After several weeks of consistent use, the VWR Capillary Bore 20UL PK100 3-33-325-20G continued to perform reliably. The glass construction held up well to repeated use and exposure to different solvents. I did not observe any degradation or change in dispensing volume over time.

Routine cleaning was essential to prevent clogging and ensure accurate dispensing, but the glass bores proved easy to clean with appropriate solvents. Compared to my previous method of using disposable pipette tips, the capillary bores offered a more environmentally friendly and cost-effective solution in the long run. The consistent performance over extended use solidified my initial positive impression.

Breaking Down the Features of VWR Capillary Bore 20UL PK100 3-33-325-20G

Specifications

The VWR Capillary Bore 20UL PK100 3-33-325-20G consists of glass capillary tubes designed for use with VWR microdispensers. Each capillary bore has a volume capacity of 20 microliters (20uL). The pack contains 100 individual capillary bores.

The precise 20uL volume is critical for accurate dispensing in micro-scale applications, minimizing errors and ensuring reproducible results. The glass material offers chemical inertness, preventing contamination of samples. The black color-coding aids in quick identification of the 20uL size, reducing the risk of using the wrong bore size accidentally.

Performance & Functionality

The VWR Capillary Bore 20UL PK100 3-33-325-20G excelled in its primary function of delivering accurate and repeatable 20uL volumes. The consistency in dispensing was notably superior to manual pipetting techniques. This is a major advantage in applications requiring high precision.

The primary strength lies in the bore’s ability to minimize dead volume and prevent cross-contamination between samples. A minor drawback could be the fragility of the glass material, requiring careful handling to avoid breakage. The performance significantly exceeded my expectations for a relatively simple component.

Design & Ergonomics

The VWR Capillary Bore 20UL PK100 3-33-325-20G features a simple yet effective design. The glass construction is lightweight and easy to handle. The black color-coding improves usability by enabling quick volume identification.

The bores require some familiarity with the VWR microdispenser, but the learning curve is minimal. The design prioritizes functionality and precision over complex features. The simple design and light weight make it ergonomic, when paired with a VWR microdispenser.

Durability & Maintenance

The glass construction of the VWR Capillary Bore 20UL PK100 3-33-325-20G suggests moderate durability. While chemically resistant, the glass is susceptible to breakage from mishandling or impact. With proper care and storage, the bores can provide a long service life.

Maintenance involves regular cleaning to prevent clogging and ensure accurate dispensing. Simple solvent rinsing is typically sufficient for routine maintenance. The easy maintenance and robust chemical resistance make this product a work horse for labs.

Accessories and Customization Options

The VWR Capillary Bore 20UL PK100 3-33-325-20G is primarily designed for use with VWR microdispensers and does not offer extensive customization options. However, the VWR microdispenser system allows for the use of different bore sizes to accommodate various dispensing volumes. The bores are generally compatible only with VWR microdispensers, limiting cross-brand compatibility. Consider the VWR ecosystem when purchasing these capillary bores.

Pros and Cons of VWR Capillary Bore 20UL PK100 3-33-325-20G

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Who Should Buy VWR Capillary Bore 20UL PK100 3-33-325-20G?

The VWR Capillary Bore 20UL PK100 3-33-325-20G is perfect for laboratory technicians, researchers, and analysts who require precise and repeatable micro-volume dispensing. It’s ideal for applications such as sample preparation for chromatography, dispensing reagents in microassays, and any other procedure requiring accurate delivery of 20uL volumes. Anyone who values reproducibility will benefit from these capillary tubes.

Individuals or labs that rarely perform micro-volume dispensing or those without a compatible VWR microdispenser should skip this product. If you work primarily with larger volumes, using standard pipettes would be a better option. The only must-have accessory is a compatible VWR microdispenser; without it, these bores are useless.

Conclusion on VWR Capillary Bore 20UL PK100 3-33-325-20G

The VWR Capillary Bore 20UL PK100 3-33-325-20G offers a reliable and precise solution for micro-volume dispensing in laboratory settings. The glass construction, accurate 20uL volume, and ease of maintenance make it a valuable tool for any lab requiring consistent and repeatable results. At $51.99 for a pack of 100, the price is justified considering the precision and long-term cost savings compared to disposable alternatives.

I would personally recommend the VWR Capillary Bore 20UL PK100 3-33-325-20G to any laboratory professional seeking a dependable method for micro-volume dispensing. If you value accuracy and consistency in your lab work, invest in the VWR Capillary Bore 20UL PK100 3-33-325-20G and experience the difference in precision. Order yours today and elevate your lab’s performance!