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Experimental supplies suitable for geochemical and other isotope analysis – PFA drop bottle

Views: 0     Author: Site Editor     Publish Time: 2023-08-02      Origin: Site

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Experimental supplies suitable for geochemical and other isotope analysis – PFA drop bottle

Drop bottle, also known as drop bottle and drop dispensing bottle, as a container for liquid drop, flow liquid distribution and pipetting

Drop bottle, also known as drop bottle and drop dispensing bottle, as a container for liquid drop, flow liquid distribution and pipetting, has become a routine product in various chemical laboratories because of its convenient operation and wide applicability.


But such a conventional container is not common in geochemical and other isotope analysis and testing laboratories.


Because a drop of unqualified reagent may mean the scrapping of the entire experimental data.


However, due to material or process reasons, conventional drop bottles have more or less common problems such as reagent hanging on the wall, precipitation of impurity elements in the bottle body, uneven droplet size, and difficult control of the liquid discharge, these make users of isotope research afraid to choose easily.


The most commonly used material for dropper bottles is LDPE, that is, low-density polyethylene. This material is soft, easy to process, and has low chemical resistance. It can be used to store diluted or weak acids, but cannot be used for high-concentration Strong acid, high impurity content and easy to precipitate.


In order to improve chemical resistance, various manufacturers have introduced drop bottles made of FEP, which have less impurities and can be used for high-concentration strong acids, but the uniformity of droplets and the sealing performance of the bottle cap are still not ideal. 

In addition here our factory also provide PFA dropper bottles with the volume of 30ml and 60ml, in which all components (bottle, cap, microbore delivery tube) are made of PFA resin of the highest purity.


As usual, our company chooses PFA supplied by Chemours as the raw material to ensure from the source that no impurity elements will be separated out to pollute the reagent even if the reagent is stored for a long time.


The inner wall is smooth and resists deposition

Our PFA dropper bottles are manufactured using a unique stretch blow molding technique, each bottle has a very smooth surface, which minimizes the possibility of trace metal deposition on the bottle wall.


The excellent finish not only effectively avoids the deposition of trace metals, but also greatly improves the cleaning efficiency, even if it is reused many times, it will not cause pollution residue.


Exclusive microporous tip, small and uniform droplets

The absence of any voids or dead spots in the tip area prevents liquid from accumulating around the tip area, ensuring uniform liquid flow and excellent reproducible droplet formation.


Squeeze out the liquid to prevent the gravity from falling automatically

By optimizing the inner diameter of the microporous tube, the droplet automatically falls due to gravity. Droplets form only when the bottle is gently squeezed. This control is critical to providing isotopically spiked solutions for geochemistry.

And the bottle wall of the PFA drop bottle is very uniform and thin enough that the operator can well control the extrusion force when squeezing the bottle.


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