In the field of environmental monitoring, the accuracy and reliability of data are the core lifelines. Quartz tubes, with their excellent temperature resistance, chemical stability, and high transmittance, have become an indispensable key component in precision instruments such as smoke monitoring, water quality analysis, and trace element detection. If you are looking for a quartz tube solution that can adapt to extreme working conditions and ensure detection accuracy.

Frequently Asked Questions (FAQ)

Q1: Why is it necessary to use quartz tubes instead of ordinary glass tubes in environmental monitoring instruments?

A: The temperature resistance limit of ordinary glass is usually around 300 ℃, and it is susceptible to acid and alkali corrosion. The softening point of quartz tube (high-purity silicon dioxide) is as high as 1730 ℃, which can work at high temperatures above 1100 ℃ for a long time, and it hardly reacts with any chemical substances except hydrofluoric acid. In environmental monitoring involving high-temperature combustion or highly corrosive gases, quartz tubes are the only material that can ensure stable data transmission.

Q2: What specifications of quartz tubes can you provide for environmental monitoring equipment?

A: We offer various specifications of transparent quartz tubes, milky white quartz tubes, and colored quartz tubes ranging from an inner diameter of 1mm to 300mm. For the special needs of environmental monitoring, we also provide dehydroxylated (low hydroxyl content) quartz tubes to meet the high transmittance requirements in the ultraviolet region, and support deep processing services such as slotting, punching, and expanding.

Core requirements and solutions

As an environmental monitoring equipment manufacturer or laboratory user, the biggest challenge you often face is the erosion of precision instruments by harsh sampling environments and background interference in trace analysis. Our quartz tube products are designed to address these pain points:

Solving the problem of high temperature corrosion: In the CEMS (Continuous Emission Monitoring) system, the chemical inertness of quartz tubes is utilized to solve the problem of damage to sensors and optical paths caused by high temperature, high humidity, and high corrosiveness of flue gas, extending the equipment maintenance cycle.

Eliminating background interference: For heavy metal detection in water quality, the extremely low background value of high-purity quartz tubes is used to solve the detection error caused by the release of impurity ions from ordinary materials, ensuring detection accuracy at the ppm or even ppb level.

Ensuring optical transmission efficiency: By utilizing the high transmittance of quartz tubes in the ultraviolet band (190-400nm), the problem of traditional materials being unable to transmit ultraviolet light is solved, ensuring the signal strength of DOAS (differential absorption spectroscopy) systems.

Product Applications and Core Advantages

Our quartz tubes are widely used in environmental protection equipment such as flue gas analyzers, atomic absorption spectrometers (AAS), inductively coupled plasma emission spectrometers (ICP-OES), and water quality COD digesters.

Why can our product bring huge value to users?

Ultimate chemical stability (corrosion resistance): Environmental monitoring often involves highly corrosive gases such as SO ₂, NOx, HCl, etc. Our quartz tube has an acid resistance 30 times that of ceramics and 150 times that of stainless steel. It can serve as a "corrosion-resistant window" for long-term exposure to harsh environments, ensuring clean optical surfaces and maintaining measurement accuracy.

Excellent thermal stability (anti thermal shock): Our quartz tube has an extremely low coefficient of thermal expansion (5.5 × 10 ⁻⁷/℃), which can withstand severe temperature changes from 1100 ℃ when directly immersed in normal temperature water without bursting. This characteristic makes it an ideal material for high-temperature combustion tubes and electric heat absorption tubes, which can operate stably without complex temperature control protection.

Excellent optical performance (high transmittance): In the ultraviolet region, our transparent quartz tube has a transmittance of over 90%. This is crucial for ozone analyzers and flue gas analyzers based on the principle of ultraviolet absorption, as it can significantly improve signal-to-noise ratio and enhance detection sensitivity.

Flexible customized processing services: We understand the special requirements of different instruments for optical path design and provide customized shaped quartz tubes such as spiral, square, U-shaped, as well as precision polishing and sanding treatment to ensure a perfect match with your optical system.

Customer Application Cases

In order to provide you with a more intuitive understanding of our service capabilities, the following two real-life application cases (anonymized) are shared:

Case 1: A certain environmental instrument company - CEMS flue gas analysis system upgrade

Customer pain point: A customer's export-oriented flue gas analyzer encountered a Waterloo in a waste incineration plant project in Southeast Asia. Due to the complex composition of local garbage and the high concentration of acidic gases and tar in the flue gas, the ordinary heat-resistant glass observation window used in the original equipment experienced severe corrosion and atomization after 3 months of operation, resulting in blocked light paths and data drift.

Our solution: We recommend customers to use JGS1 grade high-purity transparent quartz tubes as an alternative window and sampling pool. To address the issue of tar adhesion, we assisted the client in designing a quartz tube structure with a heating jacket. By utilizing the high temperature resistance of quartz to 1200 ℃, the tube wall temperature was raised to over 200 ℃ to prevent tar condensation.

Result: After the renovation, the equipment operated continuously for 12 months under extreme conditions, and the quartz tube remained as bright as new without any decrease in transmittance.

Case 2: Third party environmental testing laboratory - improving the accuracy of heavy metal detection in water quality

Customer pain point: During the detection of trace lead and cadmium in surface water using atomic fluorescence spectroscopy, the laboratory found that the blank values were consistently high and unstable, resulting in inaccurate quantification of low concentration samples. After investigation, the problem lies in the insufficient purity of the original quartz atomizer, which contains trace metal impurities.

Our solution: We provide our customers with semiconductor grade high-purity quartz tubes, which undergo special acid washing and dehydroxylation treatment to control the metal impurity content below ppb level. At the same time, a special inner diameter quartz tube was customized according to the customer's instrument model, optimizing the flow field of the argon hydrogen flame.

Result: After replacing our quartz tube, the blank value in the laboratory decreased by 50% and the detection limit (LOD) increased by two orders of magnitude.

If you are looking for quartz tube suppliers who can improve equipment performance and solve extreme environmental challenges, please feel free to contact us at any time.

Please send us your drawings or specific parameters (dimensions, tolerances, material requirements), and we will provide you with free engineering evaluation and instant quotation!

Luverre Quartz is a manufacturer specializing in quartz tubes and other quartz items.We have over 20 years experience with the production of quartz tubes, we will be your reliable partner on quartz tubes and other quartz items.

Luverre Quartz can manufacture customized quartz tubes in various shapes, such as spiral, square, round, with processing including cutting, bending, welding, etc., and available in different colors, such as transparent quartz tubes, opaque quartz tubes, milky white quartz tubes, red quartz tubes, and so on.