# Sodium Electrolyte Reagent Kit 2 × 25 ml – Colorimetric Method # Swemed Sodium Electrolyte Reagent Kit 2 × 25 ml The **Swemed Sodium Electrolyte Reagent Kit 2 × 25 ml** is a professional clinical biochemistry reagent intended for the **quantitative colorimetric determination of sodium in serum and plasma**. Swemed describes its sodium assay as a **colorimetric endpoint method** based on precipitation of sodium as a sodium-magnesium-uranyl acetate complex, followed by reaction of excess uranium with ferrocyanide to form a chromophore whose absorbance varies inversely with sodium concentration. The reagent and standard are supplied **ready to use**, and the assay is designed for professional laboratory use. Swemed lists sodium as a liquid-stable electrolyte reagent with linearity up to **200 mEq/L**. This Shopify listing is for the **2 × 25 ml total reagent configuration** supplied under the Swemed sodium range. * * * ## Product at a Glance Product Detail Information Product Name Sodium Electrolyte Reagent Kit Brand Swemed Diagnostics Pack Size **2 × 25 ml** Product Category Electrolyte / Biochemistry Reagent Test Parameter Sodium Method **Colorimetric Method** Assay Mode Endpoint Wavelength **630 nm** Temperature **37°C** Unit **mEq/L** Standard Concentration **150 mEq/L** Reaction Direction Decreasing Reagent Volume **1000 µl** Sample Volume **10 µl** Incubation **10 minutes at room temperature** Linearity **Up to 200 mEq/L** Specimen Serum / Heparin Plasma Reagent Preparation Ready to Use Reagent Storage **18–30°C** Freezing Do Not Freeze Analyser Compatibility Open-System Fully Automatic & Semi-Automatic Biochemistry Analysers Intended Use Professional In Vitro Diagnostic Use Seller Microsidd India Website microsidd.com Location Bangalore / Bengaluru, Karnataka, India The assay settings above are provided in Swemed's current Sodium Reagent Kit insert. # Key Features - **Swemed Diagnostics Sodium Electrolyte Reagent** - Pack size: **2 × 25 ml** - Quantitative sodium estimation - **Colorimetric endpoint method** - Ready-to-use reagent - Ready-to-use sodium standard - Measurement at **630 nm** - Sodium standard: **150 mEq/L** - Sample volume: **10 µl** - Reagent volume: **1000 µl** - Incubation: **10 minutes at room temperature** - Linearity up to **200 mEq/L** - Suitable for serum and heparin plasma - Suitable for compatible open-system semi-auto analysers - Suitable for compatible open-system fully automatic analysers - For **professional in vitro diagnostic use only** # Why Sodium Testing Is Important Sodium is the major cation of extracellular fluid and plays an important role in: - Regulation of body-water distribution - Osmotic pressure - Fluid balance - Neuromuscular function - Acid-base balance - Renal and endocrine physiology Swemed notes that abnormal sodium concentrations can occur in a range of clinical conditions involving fluid loss, renal disease, adrenal disorders and severe dehydration. Sodium is commonly measured together with: - Potassium - Chloride - Urea - Creatinine - Calcium - Other electrolyte and renal-profile parameters # Test Principle The Swemed Sodium Colorimetric Method is based on precipitation of sodium as a **sodium-magnesium-uranyl acetate triple salt**. The excess uranium subsequently reacts with ferrocyanide to form a coloured chromophore. The absorbance of this chromophore varies **inversely with the sodium concentration** in the patient sample. # Reagent Preparation The manufacturer states that: **The sodium reagent and sodium standard are ready to use.** This simplifies routine testing because no working-reagent preparation is required before use. # Technical Specifications Parameter Swemed Specification Test Sodium Method Colorimetric Mode Endpoint Wavelength **630 nm** Unit **mEq/L** Temperature **37°C** Standard Concentration **150 mEq/L** Reaction Slope **Decreasing** Reagent Volume **1000 µl** Sample Volume **10 µl** Incubation **10 minutes at room temperature** Blanking Reagent Blank Linearity **200 mEq/L** # Assay Procedure Summary Tube Reagent Standard / Sample Blank 1000 µl — Standard 1000 µl 10 µl Standard Test 1000 µl 10 µl Sample Mix and incubate for: **10 minutes at room temperature** Then read the absorbance of the standard and patient sample against the reagent blank at: **630 nm**. # Calculation **Sodium (mEq/L) = Absorbance of Sample ÷ Absorbance of Standard × Concentration of Standard** Manufacturer standard concentration: **150 mEq/L**. # Compatible with Open-System Biochemistry Analysers The **Swemed Sodium Reagent Kit** can be used with compatible programmable open-system analysers where the required assay parameters can be entered and validated. Open-System Setting Sodium Application Mode Endpoint Wavelength 630 nm Temperature 37°C Reagent Volume 1000 µl Sample Volume 10 µl Standard 150 mEq/L Incubation 10 minutes at RT Reaction Decreasing Blank Reagent Blank Unit mEq/L Suitable analyser categories include: - **Open-system semi-automatic biochemistry analysers** - **Open-system fully automatic biochemistry analysers** - Programmable clinical chemistry systems capable of 630 nm endpoint measurement The laboratory must verify instrument compatibility and validate the application before routine patient reporting. # Specimen Requirements Swemed recommends: - **Serum** - **Heparin plasma** For serum, fresh, clear and non-haemolysed specimens are preferred. The manufacturer states that plasma collected using **non-sodium-containing anticoagulants** can be used. # Anticoagulants to Avoid Swemed specifically advises avoiding: - **EDTA** - **Sodium fluoride** - **Oxalate** because they may interfere with the sodium result. Because sodium is the analyte being measured, laboratory collection systems containing sodium salts should also be avoided. # Specimen Stability According to the Swemed insert: Storage Condition Stability 2–8°C **Up to 2 weeks** Room Temperature **24 hours** Contaminated specimens should be discarded. # Measuring Range and Linearity The stated assay linearity is: **Up to 200 mEq/L**. Laboratories should follow their validated dilution procedure and current manufacturer instructions for samples exceeding the measuring range. # Manufacturer Reference Range Specimen Manufacturer Reference Range Serum / Plasma **135–155 mEq/L** Swemed notes that laboratories should verify whether the stated reference interval is appropriate for their own patient population. # Storage and Stability Swemed states that the reagent should be: - Stored at **18–30°C** - Protected from light - Protected from contamination - **Not frozen** - Used within the labelled expiry date Possible signs of reagent deterioration include: - Visible particles - Turbidity - Reagent blank absorbance above **1.0 at 630 nm** # Safety and Precautions The Swemed Sodium reagent contains **sodium azide as a preservative** and should be handled according to normal laboratory safety procedures. Professional users should: - Wear suitable gloves - Use eye/face protection - Avoid ingestion - Avoid contact with skin and mucous membranes - Never pipette reagent by mouth - Follow Good Laboratory Practice # Sodium in an Electrolyte Profile Parameter Laboratory Relevance Sodium Extracellular fluid and osmotic balance Potassium Cellular and cardiac electrolyte balance Chloride Fluid and acid-base balance Calcium Mineral and neuromuscular physiology Magnesium Neuromuscular and metabolic function Urea Renal and protein metabolism Creatinine Renal filtration assessment # Who Can Buy This Product? Buyer Type Typical Application Pathology Laboratories Routine sodium testing Diagnostic Centres Electrolyte and renal-profile testing Hospital Laboratories Clinical chemistry investigations Nephrology Centres Electrolyte monitoring Dialysis Centres Renal and electrolyte testing Clinical Chemistry Laboratories Routine sodium estimation Medical Institutions Teaching and diagnostic use Healthcare Organisations Institutional procurement Laboratory Distributors Professional supply where permitted # Useful Tips Before Ordering - Confirm that **colorimetric sodium** is the required methodology. - Verify the pack size: **2 × 25 ml**. - Confirm analyser support for **630 nm endpoint measurement**. - Verify that your analyser is an **open system**. - Check reagent and sample volume programmability. - Verify the **150 mEq/L standard concentration**. - Use serum or suitable heparin plasma. - Avoid EDTA, sodium fluoride and oxalate specimens. - Store reagent at **18–30°C**. - Do not freeze. - Perform calibration and internal quality control before reporting patient results. # Buy Swemed Sodium Reagent in Bangalore Microsidd India supplies **electrolyte reagents, renal-profile reagents and clinical biochemistry products from Bangalore / Bengaluru, Karnataka**. The **Swemed Sodium Electrolyte Reagent Kit 2 × 25 ml** is suitable for pathology laboratories, diagnostic centres, hospitals, nephrology facilities and professional clinical chemistry laboratories using compatible open-system analysers. The product can be ordered through **microsidd.com**, subject to stock availability and delivery serviceability. # Search Relevance Relevant buyer searches include: - Sodium reagent supplier in Bangalore - Swemed Sodium Reagent Bangalore - Sodium electrolyte reagent Bengaluru - Sodium colorimetric reagent India - Sodium reagent 2 × 25 ml - Sodium reagent for semi auto analyser - Sodium reagent for fully automatic analyser - Open system sodium reagent Bangalore - Electrolyte reagent supplier Bengaluru - Clinical chemistry reagent supplier near me - Pathology reagent supplier Bangalore - Swemed Diagnostics sodium reagent India - laboratory reagent suppliers in bangalore # Product Summary ### What is Swemed Sodium Electrolyte Reagent Kit? The **Swemed Sodium Electrolyte Reagent Kit 2 × 25 ml** is a ready-to-use professional clinical chemistry reagent for quantitative sodium determination by a **colorimetric endpoint method**. ### What method does it use? It uses a **Colorimetric Method** based on sodium precipitation and subsequent chromophore formation. ### What wavelength is required? **630 nm**. ### What is the sample volume? **10 µl**. ### What is the reagent volume? **1000 µl**. ### What is the sodium standard concentration? **150 mEq/L**. ### What is the linearity? **Up to 200 mEq/L**. ### Is the reagent ready to use? Yes. Both the **reagent and standard are ready to use**. ### Which specimens can be used? Swemed lists **serum and heparin plasma**. ### Is it compatible with semi-automatic analysers? Yes, when used on compatible **open-system semi-automatic biochemistry analysers** after programming and application validation. ### Is it compatible with fully automatic analysers? Yes, when used on compatible **open-system fully automatic analysers** that permit third-party reagent programming and support the required 630 nm endpoint assay. # Entity Information Entity Details Product Sodium Electrolyte Reagent Kit Brand Swemed Diagnostics Pack Size 2 × 25 ml Analyte Sodium Method Colorimetric Mode Endpoint Wavelength 630 nm Unit mEq/L Specimen Serum / Heparin Plasma Clinical Category Electrolytes / Renal Profile Product Category Laboratory Reagents Subcategory Biochemistry Reagents Analyser Compatibility Open-System Fully Automatic & Semi-Automatic Analysers Seller Microsidd India City Bangalore / Bengaluru State Karnataka Country India Website microsidd.com # Why Buy Swemed Sodium Reagent from Microsidd.com? Electrolyte reagents should be ordered only after verifying the **exact parameter, method, wavelength, analyser compatibility, pack size, storage conditions and seller source**. Microsidd India focuses on laboratory, diagnostic and healthcare products and has long-standing experience in the IVD sector, making it easier for professional buyers to verify technical requirements before ordering. ## Microsidd.com vs Online Marketplaces vs Offline Suppliers Buying Factor Microsidd.com Large Online Marketplaces Offline / Local Suppliers Seller Specialisation Diagnostic & laboratory focused Seller expertise varies Dealer dependent Method Verification Colorimetric sodium can be confirmed Listing details may be limited Depends on dealer Pack Verification 2 × 25 ml can be confirmed Pack listings may vary Stock dependent Open-System Guidance Suitable for analyser-specific queries Often limited Dealer dependent Seller Identity Direct Microsidd India purchase Marketplace seller may vary Usually identifiable GST Invoice Available for eligible purchases Seller dependent May vary B2B Procurement Suitable for labs and institutions Seller dependent Usually local Product Range Specialist electrolyte and biochemistry catalogue Broad but not specialised Often limited Customer Support Direct Microsidd support Marketplace + seller layer Local support India-Wide Supply Subject to serviceability Broad Usually regional # Frequently Asked Questions ### What is Swemed Sodium Reagent used for? It is used for quantitative determination of **sodium in serum and plasma** by a colorimetric method. ### What is the pack size? **2 × 25 ml**. ### What method is used? **Colorimetric Method**. ### What wavelength is required? **630 nm**. ### What is the assay mode? **Endpoint**. ### What is the sample volume? **10 µl**. ### What is the reagent volume? **1000 µl**. ### What is the sodium standard concentration? **150 mEq/L**. ### What is the assay linearity? **200 mEq/L**. ### Is the reagent ready to use? Yes. Swemed states that the reagent and standard are **ready to use**. ### Which sample types should be avoided? The manufacturer advises avoiding **EDTA, sodium fluoride and oxalate** because they can interfere with results. ### How should the reagent be stored? Store at **18–30°C**, protected from light and contamination, and **do not freeze**. ### Can it be used on a semi-auto analyser? Yes, on compatible **open-system semi-automatic biochemistry analysers** after application programming and laboratory validation. ### Can it be used on a fully automatic analyser? Yes, on compatible **open-system fully automatic biochemistry analysers** supporting 630 nm endpoint programming. ### Is it intended for home use? No. It is for **professional in vitro diagnostic use only**. # Medical and Laboratory Disclaimer The information on this product page is provided for **general product identification, procurement and laboratory educational purposes only**. This product is intended for **professional in vitro diagnostic use by trained laboratory personnel**. Sodium results should not be interpreted independently to diagnose or exclude electrolyte, renal, endocrine or fluid-balance disorders. Results should be evaluated with clinical history and other relevant investigations. For open-system fully automatic and semi-automatic analysers, **instrument compatibility, application settings, calibration, quality control and performance must be verified and validated by the laboratory before routine patient reporting**. The current Swemed package insert supplied with the actual product lot should always be treated as the definitive technical specification. # No Return / No Exchange Policy **This product is non-returnable and non-exchangeable.** Please verify the **brand, model, compatibility, pack size and product specifications before placing your order**. For laboratory reagents, customers should specifically verify the **test parameter, methodology, analyser compatibility, reagent configuration and pack size** before ordering. Genuine cases involving an **incorrect product received** will be handled separately according to Microsidd.com's applicable policies and applicable law. **An original, continuous, unedited and uncut unboxing video is compulsory for making any claim regarding an incorrect product received.** ## Details - **Price:** 1800.0 INR - **Vendor:** Swemed Diagnostics - **Type:** Biochemistry Reagents - **Tags:** Bio Chemistry Reagents, biochemistry ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 1800.00 INR | In stock | ## Images - Swemed Sodium Reagent 2x25ml | Colorimetric Electrolyte Kit Microsidd - Swemed Sodium Reagent 2x25ml | Colorimetric Electrolyte Kit Microsidd - Swemed Sodium Reagent 2x25ml | Colorimetric Electrolyte Kit Microsidd - Swemed Sodium Reagent 2x25ml | Colorimetric Electrolyte Kit Microsidd - Swemed Sodium Reagent 2x25ml | Colorimetric Electrolyte Kit Microsidd --- > Source: [Microsidd India](https://microsidd.com/products/sodium-electrolyte-reagent-kit) > Updated: 2026-09-14