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A3P (ATP) acts as a powerhouse of energy, driving transformation and innovation, enabling new and better possibilities for growth and advancement.


















Authorized distributor
3CR Bioscience Limited’s patented genotyping chemistry, PACE, is the latest in allele-specific chemistry. It provides consistent results.
Citric Acid Assay Kit

K-CITR
SKU: 700004274
72 assays (manual) / 720 assays (microplate) / 840 assays (auto-analyser)
| Content: | 72 assays (manual) / 720 assays (microplate) / 840 assays (auto-analyser) |
| Shipping Temperature: | Ambient |
| Storage Temperature: | Short term stability: 2-8oC, Long term stability: See individual component labels |
| Stability: | > 2 years under recommended storage conditions |
| Analyte: | Citric Acid |
| Assay Format: | Spectrophotometer, Microplate, Auto-analyser |
| Detection Method: | Absorbance |
| Wavelength (nm): | 340 |
| Signal Response: | Decrease |
| Linear Range: | 1.0 to 100 µg of citric acid per assay |
| Limit of Detection: | 0.491 mg/L |
| Reaction Time (min): | ~ 5 min |
| Application examples: | Grape juice, wine, beer, fruit juices, soft drinks, tea, dairy products (e.g. cheese), meat, processed meat, vegetable and fruit products, bakery products, paper, pharmaceuticals, cosmetics and other materials (e.g. biological cultures, samples, etc.). |
| Method recognition: | Methods based on this principle have been accepted by MEBAK, OIV, EU, ISO2963, AOAC and IFU22 (NOTE: If the enzyme oxaloacetate decarboxylase is present in the sample, some of the oxaloacetate product is converted to pyruvate. Therefore, to ensure citric acid is measured quantitatively, D-lactate dehydrogenase (D-LDH) is employed to efficiently convert any pyruvate produced into D-lactate and NAD+). |
The Citric Acid test kit is a flexible and simple method for the rapid and reliable measurement and analysis of citric acid (citrate) in foods, beverages and other materials.
Note for Content: The number of manual tests per kit can be doubled if all volumes are halved. This can be readily accommodated using the MegaQuantTM Wave Spectrophotometer (D-MQWAVE).
View our full list of organic acid test kits.
Advantages
- Extended cofactors stability. Dissolved cofactors stable for > 1 year at 4oC.
- Reconstituted citrate lyase stable for 4 weeks at 4oC / 6 months below -10oC
- Buffer / cofactor / enzyme tablets for efficient use of kit components
- PVP incorporated to prevent tannin inhibition
- Very competitive price (cost per test)
- Mega-Calc™ software tool is available from our website for hassle-free raw data processing
- Standard included
- Suitable for manual, microplate and auto-analyser formats
The Citric Acid test kit is a flexible and simple method for the rapid and reliable measurement and analysis of citric acid (citrate) in foods, beverages and other materials.
IVD5435 MagPure Circulating DNA Maxi Kit

Introduction
This Kit is designed forpurification of high quality circulating DNA (cfDNA) from 1-6ml cell-free bodyfluids (such as plasma, serum). The purified DNA is suitable for direct use indownstream applications such as PCR, real-time PCR, Biochip analysis and NGS.
Details
Specifications
| Features | Specifications |
| Main Functions | Isolation circulating DNA from 1-6ml plasma, serum, body fluids |
| Applications | qPCR, NGS, etc. |
| Purification technology | Magnetic beads technology |
| Process method | Manual or automatic |
| Sample type | Serum, plasma |
| Sample amount | 1-6ml |
| Elution volume | ≥50μl |
| Time per run | ≤60 minutes |
Principle
This product is based on the purification method of high binding magnetic particles. The sample is lysed and digested under the action of lysate and protease. DNA is released into the lysate. After adding magnetic particles and binding solution, DNA will be adsorbed on the surface of magnetic particles, and impurities such as proteins will be removed without adsorption. The adsorbed particles were washed with washing solution to remove proteins and impurities, washed with ethanol to remove salts, and finally DNA was eluted by elution buffer.
Advantages
- Economy – less than 50% of the price of Qiagen and other imported products
- Automatic – without labour
- High purity – OD 260 / 280 : 1.7-1.9, OD 260 / 230 :1.5-2.0
Kit Contents
| Contents | IVD5435 |
| Purification Times | 50 |
| MagPure Particles F | 14 ml |
| Carrier RNA | 310 μg |
| Proteinase K | 240 mg |
| Protease Dissolve Buffer | 15 ml |
| Buffer SDS | 15 ml |
| Buffer MLK | 500 ml |
| Buffer MAW1 | 250 ml |
| Buffer MW2* | 50 ml |
| Elution Buffer | 60 ml |
Storage and Stability
Proteinase K, Carrier RNA and MagPure Particles F should be stored at 2–8°C upon arrival. However, short-term storage (up to 12 weeks) at room temperature (15–25°C) does not affect their performance.Theremaining kit components can be stored dry at room temperature (15–25°C) and are stable for at least 18 months under these conditions.The entire kit can be stored at 2–8°C, but in this case buffers should beredissolved before use. Make sure that all buffers are at room temperature when used.
Experiment Data
This Kit is designed forpurification of high quality circulating DNA (cfDNA) from 1-6ml cell-free bodyfluids (such as plasma, serum). The purified DNA is suitable for direct use indownstream applications such as PCR, real-time PCR, Biochip analysis and NGS.
DBCO-Sulfo-NHS ester
DBCO-Sulfo-NHS ester is a water-soluble sulfocated reagent containing DBCO moiety. It can be used for simple and efficient labeling of antibodies, proteins and any other primary amine-bearing macromolecules with DBCO moiety in 100% aqueous buffers. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

DBCO-Sulfo-NHS ester is a water-soluble sulfocated reagent containing DBCO moiety. It can be used for simple and efficient labeling of antibodies, proteins and any other primary amine-bearing macromolecules with DBCO moiety in 100% aqueous buffers. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Water RNA/DNA Purification Kits

Overview
- Isolate total DNA and RNA from all microorganisms found in water, including bacteria, fungi and algae
- RNA and DNA are both column purified simultaneously using the same column
- Elution contains concentrated DNA and RNA without the need for further precipitation
- Complete RNA (including microRNA) without phenol
- Isolated RNA and DNA are of high quality and integrity for all downstream applications
- Purification is based on spin column chromatography that uses Norgen’s proprietary resin separation matrix
These kits provide a convenient and rapid method for the isolation of microorganisms from water samples. The kits allows for the rapid isolation and purification of total RNA and DNA simultaneously from the microorganisms found in different types of water samples. The total RNA and DNA (including genomic DNA) are isolated from all the microorganisms found in the water, including bacteria, fungi and algae without the use of any inhibitory organic substances The kit purifies genomic DNA, and all sizes of RNA, from large mRNA and ribosomal RNA down to microRNA (miRNA) and small interfering RNA (siRNA). The purified RNA and DNA are highly concentrated, and can be used directly in a number of downstream applications including PCR, qPCR, RT-PCR, qRT-PCR, Northern blotting, Southern blotting and sequencing reactions.
Water RNA/DNA Purification Kit (Spin Column + Filters Kits)
These kits are available with 0.45 μm or 0.22 μm filter formats for capturing microorganisms present in the water.
Water RNA/DNA Purification Kit (Spin Column)
This kit is sold without filters columns.
Details
Supporting Data
Figure 1 / 2
Click for expanded view
| Kit Specifications | |
| Minimum Water Input | 10 mL |
| Maximum Water Input | 100 mL |
| Maximum Filter Column Loading Volume | 20 mL |
| Maximum Spin Column Loading Volume | 650 µL |
| Elution Volume | 100 µL |
| Time to Complete 10 Purifications | 45 minutes |
Storage Conditions and Product Stability
All solutions should be kept tightly sealed and stored at room temperature. This kit is stable for 2 years from the date of shipment.
| Component | Cat. 26400 (25 preps) | Cat. 26450 (25 preps) | Cat. 26480 (50 preps) |
|---|---|---|---|
| Lysis Buffer E | 15 mL | 15 mL | 2 x 15 mL |
| Wash Solution A | 18 mL | 18 mL | 38 mL |
| Enzyme Incubation Buffer B | 6 mL | 6 mL | 6 mL |
| Elution Buffer H | 6 mL | 6 mL | 6 mL |
| Mini Spin Columns | 25 | 25 | 50 |
| Filter Columns (0.22 μL) | 25 | – | – |
| Filter Columns (0.45 μL) | – | 25 | – |
| Bead Tubes | 25 | 25 | 50 |
| Collection Tubes | 25 | 25 | 50 |
| Elution Tubes (1.7 mL) | 25 | 25 | 50 |
| Product Insert | 1 | 1 | 1 |
Bis-propargyl-PEG12

Bis-propargyl-PEG12 has two alkyne groups at both ends of the linker. With the catalyzation of copper, the alkyne groups reacts with azide compounds to form stable triazole linkages. The PEG spacer enhances the water-solubility of the compound. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Bis-propargyl-PEG12 has two alkyne groups at both ends of the linker. With the catalyzation of copper, the alkyne groups reacts with azide compounds to form stable triazole linkages. The PEG spacer enhances the water-solubility of the compound. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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Our Team
Our sales team is comprised of knowledgeable and experienced individuals in the field of science, who are committed to service, honesty, and responsibility. We strive to ensure that our customers receive unparalleled service that they won’t find anywhere else. We want our customers to feel confident that we will provide them with the very best service possible.

TANATHORN VITISANT
Sales manager
Phone : 081-875-1869
Email : [email protected]
Line id : @a3p-scientific

NUCHANAT JANPRAPAS
Area Sales Manager
Phone : 099-263-6624
Email : [email protected]
Line id : belongkong

NANTASAK SRISUWAN
Area Sales Manager
Phone : 094-562-5914
Email : [email protected]
Line id : north6906295
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