Imagine the following scenario: you are either performing a sensitive chemical reaction or you are adding a reagent to a microbial culture where the protocol specifies that 3.5 mL are required. The tool you have, however, cannot provide an accurate measure of the required volume. Estimating the volume with the tool introduces variation. Moreover, it may be inconvenient to use a micropipette, which can be very costly, especially for routine work or when dealing with corrosive reagents.

This is a common problem in laboratories all over the world.

Experimental science, especially when dealing with small amounts of liquids, requires great accuracy and the ability to repeat experiments. The traditional glass droppers are very convenient, but do not allow the measurement of volume, and precision pipettes can be very expensive with a high frequency of required calibration.

To solve this problem, the Glass Graduated Dropper with Rubber Bulb was designed.

The Description Of Glass Graduated Dropper

They are designed to measure and dispense small volumes of liquids with great precision.

There are graduation marks inscribed in the glass tube, which allows users to transfer liquids with much greater consistency and confidence when compared to ordinary droppers.

Huida Medical provides glass graduated droppers with rubber bulbs and with borosilicate glass. They are:

Optically clear

Chemically resistant

Graduated for easy measurement

Easy to suck up liquids

Bulbs that are easy to substitute

Completely reusable

Environmentally Friendly.

Features Of Glass Graduated Dropper with Rubber Bulb

Accurate Volume Measurement

The graduation marks allow the users to measure liquid volumes visually, which improves consistency when compared to ordinary droppers.

Exceptional Chemical Resistance

The dropper's construction with laboratory-grade borosilicate glass provides resistance to most laboratory chemicals including:Acids、Alkalis、Alkalis、Alcohols、Organic solvents、Laboratory buffers.

Ergonomic Rubber Bulb,The rubber bulb enables:

● Release of liquid with better control and greater ease

● Comfortable one-handed operation

● Different bulb colors help distinguish capacities quickly.

● Cost Effective and Eco Friendly

Glass graduated droppers can be cleaned, sterilized, and reused many times, unlike disposable plastic droppers. This makes the droppers cost effective and eco-friendly, providing a solution to laboratory waste.

Specification Of  glass graduated dropper

Application Of Graduated Glass Droppers

Huida's graduated glass droppers are suitable for a multitude of laboratory uses.

Clinical Labs

Sample transfer

Reagent dispensing

Microbiology Labs

Preparation of bacterial suspensions

Dispensing of culture media

Cell Biology and Immunology Labs

Cell washing

Buffer and antibody transfer

ELISA preparation

Chemical Labs

Use of acid and alkali solutions and organic solvents

Education Labs

Perfect for teaching accurate liquid measurement and transfer.

Reading the Graduation Marks

The measurement of liquid volume with a dropper is precise and reliable only when the graduation marks are read accurately.

Step 1

The dropper is held vertically.

Step 2

The graduation mark is read at the lowest point of the liquid meniscus.

Step 3

Parallax error is eliminated by reading the liquid level with the eye.

What Not to Do

1. Drawing Liquid into the Rubber Bulb

Excessive suction may cause liquid to enter the rubber bulb, contaminating or damaging the rubber.

Recommendation:

Draw the liquid slowly and stop before it reaches the top of the glass tube.

2. Blowing Out the Last Drop

Many lab droppers are calibrated for accurate dispensing. Forcing out the remaining liquid may result in dispensing more than the calibration value.

Always check the calibration specifications before use.

3. Using the Dropper Horizontally

Holding the dropper at too wide an angle increases the risk of liquid flowing back into the rubber bulb and reduces dispensing accuracy.

Always keep the dropper as vertical as possible.

Why Choose Huida Medical as Your Glass Graduated Dropper Manufacturer?

For the last two decades, Huida Medical has supplied laboratory consumables to clients around the world.

Comprehensive Product Range

We manufacture dropper designs that range in volumetric capacity from 0.5 mL to 10 mL.

Premium Manufacturing Quality

Consigned borosilicate glass, with bulbs of rubber that are of high tensile strength, are ensured along with strict control on the dimensions and graduations in every batch.

International Manufacturing Standards

A complete quality management system exists in our factory to ensure reliable and consistent products.

OEM & ODM Services

These services include:

Private labeling, folding bulk orders, bulk pharmaceuticals, custom colors and custom boxes.

Global Export Experience

Our laboratory supplies have been exported to distributors and served end-users in universities and hospitals, research institutes and diagnostic companies located in Europe, North America, South America, Asia, the Middle East, and Africa.

Frequently Asked Questions

F:Is the glass graduated dropper autoclavable?

Q:Yes.The borosilicate glass tube can handle autoclave sterilization at 121 °C as a standard setting. High temperature sterilization may reduce the rubber bulb's elasticity. The bulb should be replaced and inspected periodically.

F:How is the dropper cleaned?

Q:The glass tube should be rinsed with deionized water, ethanol, or an appropriate lab cleaning solution immediately after use.

A lab cleaning brush can be used to remove stubborn cleaning residues. The tube can be left to air dry or dried in an oven at low temperature.

F:Does the graduation say “To Deliver (TD)” or “To Contain (TC)”?

Q:Laboratory glass graduated droppers are generally graduated and calibrated as To Deliver (TD) instruments. This means that the volume of the graduation line is the total amount dispensed with the dropper, and the last drop is not blown out.

You are encouraged to check the specifications of the dropper in question.

Conclusion

Precision in liquid handling is important to ensure that reliable results are obtained in chemical analysis, microbiological studies, and pharmaceutical and life science testing.

Huida Medical's Glass Graduated Dropper with Rubber Bulb is a reliable laboratory tool with the combined benefits of the strength of borosilicate glass, the clear graduations, and easy to use design.

Each dropper (0.5 mL to 10 mL) is made to be accurate, consistent, and to optimize the dropper's use in the lab.

Huida Medical offers some of the best tools in the industry.

When you need a reliable supplier of easy to use, portable laboratory tools with a design that incorporates a rubber bulb and borosilicate glass, you can rely on Huida Medical.