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Home > Instruments & Meters > Test Instrument > Test Machine > Hot Sale Lab 20 Tests Arsenic Test Kit

Hot Sale Lab 20 Tests Arsenic Test Kit

Name: Hot Sale Lab 20 Tests Arsenic Test Kit
Brand: LOHAND
SKU: 102032729

Hot Sale Lab 20 Tests Arsenic Test Kit thumbnail-1

Hot Sale Lab 20 Tests Arsenic Test Kit photo-1

Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)

Key Specifications

Get Latest Price

Place of Origin:

Zhejiang, China

Brand Name:

LOHAND

Model Number:

LH2026

Contact Supplier Request Quote Chat Now

Hangzhou Lohand Biological Co., Ltd.

Payment & Shipping

Payment Methods:

Port of Shipment:

Shanghai or Ningbo

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
Contact Us

Place of Origin Zhejiang, China

Brand Name LOHAND

Model Number LH2026

Power Other

Usage Paper Testing Instrument

Specifications

Model: LH2026
Measuring range:
0.004-0.08mg/l
Packing: 20 tests/box
Shelf life: 1year

Specification:

Arsenic Test kit

Model: LH2026

Brand:LOHAND

Measuring range:

0.004-0.08mg/l

Packing: 20 tests/box

Shelf life: 12months

Background of development

Sources of arsenic:
Arsenic (As) is a kind of elements non-essential to the human body, under normal circumstances. There is trace amount of arsenic in soil, water, air, plants and human body. This is not a hazard to humans. Arsenic pollution mainly comes from industrial wastewaters of the mining, metallurgy, chemical industry, chemical pharmaceutical, pesticide production, textiles, glass, leather and other sectors.

The significance of arsenic test
Arsenic element is of low toxicity, but arsenic compounds are highly toxic. Trivalent arsenic compounds are more toxic than others. Arsenic enters into human body by respiratory, digestive and skin contact. If the intake of arsenic exceeds the excretion of arsenic, it would be accumulated in the liver, kidney, lung, spleen, uterus, placenta, bones, muscles and other parts of human body, especially in the hair and nails, which lead to chronic arsenic poisoning and the period of incubation up to years or even decades. The symptoms of chronic arsenic poisoning are the digestive system symptoms, nervous system symptoms and skin lesions. The arsenic is also a kind of carcinogenic and can cause skin cancer.

Principle
This method equals to the standard method that is arsenic spot method (GB/T5750.6-2006). The process of reaction is that pentavalent arsenic reduces to trivalent arsenic, and zinc reacts with acid to generate new eco-hydrogen, then trivalent arsenic reacts with the new eco-hydrogen to yield hydrogen arsenide. Using lead acetate cotton to remove the interference of hydrogen sulfide, a yellow-brown spot is generated on the mercury bromide test paper. We can do the quantitative analysis by compare the depth of spot color.

Quick and easy

Operating in accordance with the instructions, users can complete the arsenic test independently without specialized training. 30 minutes is enough to complete the analysis of one sample.

Accurate and reliable

Determination results with this method are in accordance with the results with the standard method. It can be used as an alternative method to the standard method.

The range of the determination: 0.1~2.0μg/25mL(0.004~0.08mg/L). If the concentration is out of the range, please repeat the operation after appropriate dilution of the water sample.

Quantitative packing

The kit can be used for 20 times. It is small, light and easy to carry.

Specification
Clip a paper in the top of arsenic test tube which has been filled with lead acetate cotton in the bottom previously, then transfer 25mL water sample to arsenic test bottle, adding a packet of reagent I, 5 drops of reagent II, 5mL reagent III and a packet of reagent IV in turn and stuffing the arsenic test tube immediately. A shake is required after each reagent has been added. Remove the test strip and compare with the standard card after 30 minutes. The concentration of the level which has the same color as the paper shows the content of the arsenic (μg/25mL).
Note:

(1)Measured on the temperature of 10 ~ 30 °C;
(2) Hydrogen arsenide is toxic, please be careful in handling;
(3) The reagents and related products in this kit should be stored in a dark, cool and dry place.

Application areas
This product can be used in analysis of arsenic in drinking water, surface water, groundwater, fishery water, irrigation water and industrial wastewater.

Our certificates

Own factory and facilities

FAQ

Q1: Why choose us?

A: 1. We have our own factory with strong R&D center and QA team which can make sure your goods can be sent out on time and in superior quality.

2. We have experienced and dedicated core members to offer you professional and reliable before-sales and after-sales service.

3. We have purveyed customers with the lowest wholesale price.

Q2: How do you guarantee the quality?

A: One year's guarantee from date on B/L. Normally. If it's quality problem, we promise to return goods or funds.

Q3: Is OEM available?

A: Yes, all goods can be custom made by your requirements, including packing, LOGO print, etc.

Q4: Can we buy 1 pc for sample testing?

A: Yes, we are glad to send 1pc for quality testing if we have stock of the model you required.

Q5: How to deliver the goods for trial order or small order?

A : For small order, we prefer to choose international express, such as DHL, TNT, EMS which are faster and more convenient for customer. Also, we cooperate with an express agent that can give us a big discount for express fee which is much lower than that quoted by official. For the goods with detachable battery, the express fee can be lower down if the goods is sent out without battery.

Q6: What kind of payment your company accept?

A : T/T , WEST UNION , PAYPAL , ETC.

Q7: If we have not found the model from website, what should we do?

A: Please email us with description and picture of the product, we research and develop new model every month, and some of them maybe have not been uploaded in website immediately. But If this is a new products for us, we can develop it for you after get all detailed information about your product.