The Swemed Magnesium Electrolyte Reagent Kit 2 × 50 ml is a professional clinical biochemistry reagent intended for the quantitative determination of magnesium in serum and plasma using the Xylidyl Blue method.
Swemed’s official literature states that magnesium ions react with Xylidyl Blue under alkaline conditions to form a purple-red chelate complex. The intensity of the colour produced is directly proportional to the magnesium concentration in the specimen.
Swemed’s current catalogue lists Magnesium 2 × 50 ml, product code MAG 717, with EGTA as the stated method classification and a 24-month shelf life.
This product is intended for professional pathology laboratories, diagnostic centres, hospitals and clinical chemistry laboratories, including compatible open-system fully automatic and semi-automatic biochemistry analysers after method programming and laboratory validation.
| Product Detail | Information |
|---|---|
| Product Name | Magnesium Electrolyte Reagent Kit |
| Brand | Swemed Diagnostics |
| Pack Size | 2 × 50 ml |
| Product Code | MAG 717 |
| Test Parameter | Magnesium |
| Method | Xylidyl Blue / EGTA Method |
| Assay Mode | Endpoint |
| Wavelength | 505 nm |
| Temperature | 37°C |
| Unit | mg/dL |
| Standard Concentration | 2.0 mg/dL |
| Reaction Direction | Increasing |
| Reagent Volume | 1000 µl |
| Sample Volume | 10 µl |
| Incubation | 10 minutes at room temperature |
| Measuring Range | 1–5.0 mg/dL |
| Linearity | Up to 5.0 mg/dL |
| 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 parameters above are provided in Swemed’s official Magnesium insert.
Magnesium is a major intracellular cation and plays an important role in:
Swemed notes that increased magnesium levels may occur in conditions such as dehydration, Addison’s disease and uraemia, while decreased levels may be seen in malabsorption, chronic renal disease, chronic alcoholism, hyperthyroidism, pancreatitis and during treatment of diabetic coma.
Magnesium is commonly evaluated together with:
Magnesium ions react with Xylidyl Blue in an alkaline medium to form a coloured magnesium-Xylidyl Blue complex.
The intensity of the purple-red colour formed is proportional to the magnesium concentration in the specimen.
| Component | Manufacturer Specification |
|---|---|
| Tris Buffer pH 10 | 24.2 g/L |
| Xylidyl Blue | 50.3 mg/L |
| Potassium Carbonate | 10.3 g/L |
| EGTA | 19.0 g/L |
| Sodium Azide | 500 mg/L |
| Magnesium Standard | 2.0 mg/dL |
Swemed states that:
The reagent and standard are ready to use.
This makes the product convenient for routine clinical chemistry workflows without reagent reconstitution.
| Parameter | Swemed Specification |
|---|---|
| Test | Magnesium |
| Method | Xylidyl Blue / EGTA |
| Mode | Endpoint |
| Wavelength | 505 nm |
| Unit | mg/dL |
| Temperature | 37°C |
| Standard Concentration | 2.0 mg/dL |
| Reaction Slope | Increasing |
| Reagent Volume | 1000 µl |
| Sample Volume | 10 µl |
| Incubation | 10 minutes at room temperature |
| Blanking | Reagent Blank |
| Measuring Range | 1–5.0 mg/dL |
| Linearity | 5.0 mg/dL |
| 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 measure the absorbance of the sample and standard against the reagent blank at:
505 nm.
Magnesium (mg/dL) = Absorbance of Sample ÷ Absorbance of Standard × Concentration of Standard
Manufacturer standard:
2.0 mg/dL.
The Swemed Magnesium Reagent Kit can be used with compatible open-system analysers that allow the required endpoint application to be programmed.
| Open-System Setting | Magnesium Application |
|---|---|
| Mode | Endpoint |
| Wavelength | 505 nm |
| Temperature | 37°C |
| Reagent Volume | 1000 µl |
| Sample Volume | 10 µl |
| Standard | 2.0 mg/dL |
| Incubation | 10 minutes at RT |
| Reaction | Increasing |
| Blank | Reagent Blank |
| Unit | mg/dL |
Suitable analyser categories include:
The laboratory should verify analyser compatibility and validate the application before routine patient reporting.
Swemed lists:
Fresh, clear, non-haemolysed serum is recommended.
This is particularly important because erythrocytes contain higher magnesium concentrations than serum, so haemolysis can produce falsely elevated magnesium results. Swemed advises that visibly haemolysed specimens should not be used.
Swemed advises avoiding:
because these substances can interfere with the assay.
The manufacturer also notes that trace chelating agents such as EDTA, oxalate and citrate can prevent formation of the colour complex.
| Specimen | Stability |
|---|---|
| Serum / Plasma at 2–8°C | 7 days |
Contaminated specimens should be discarded.
The assay is designed to measure magnesium concentrations in the range:
1–5.0 mg/dL
The stated linearity is:
5.0 mg/dL.
For samples above the measuring range, Swemed recommends dilution 1 + 1 with 0.9% NaCl, repeating the test and multiplying the obtained result by 2.
Swemed specifically recommends:
These precautions are especially important in magnesium testing because trace contamination or chelation can affect analytical performance.
| Population | Manufacturer Reference Range |
|---|---|
| Newborn | 1.2–2.6 mg/dL |
| Children | 1.5–2.3 mg/dL |
| Women | 1.9–2.5 mg/dL |
| Men | 1.8–2.6 mg/dL |
Swemed recommends that each laboratory establish or verify its own reference interval for its patient population.
Store the reagent:
Swemed lists possible signs of deterioration as:
The current Swemed catalogue lists a 24-month shelf life for Magnesium when stored correctly.
The reagent contains sodium azide preservative and should be handled using routine laboratory safety precautions.
Professional users should:
| Parameter | Laboratory Relevance |
|---|---|
| Magnesium | Intracellular mineral and enzyme-related function |
| Sodium | Extracellular fluid balance |
| Potassium | Cardiac and intracellular electrolyte balance |
| Chloride | Fluid and acid-base balance |
| Calcium | Mineral and neuromuscular function |
| Phosphorus | Bone and renal metabolism |
| Urea | Renal and protein metabolism |
| Creatinine | Renal filtration assessment |
| Buyer Type | Typical Application |
|---|---|
| Pathology Laboratories | Routine magnesium testing |
| Diagnostic Centres | Electrolyte and metabolic testing |
| Hospital Laboratories | Clinical chemistry investigations |
| Nephrology Centres | Renal and electrolyte monitoring |
| Dialysis Centres | Mineral and electrolyte testing |
| Endocrinology Centres | Metabolic and electrolyte investigation |
| Clinical Chemistry Laboratories | Routine magnesium estimation |
| Medical Institutions | Teaching and diagnostic laboratory use |
| Healthcare Organisations | Institutional procurement |
| Laboratory Distributors | Professional supply where permitted |
Microsidd India supplies electrolyte reagents, renal-profile reagents and clinical biochemistry products from Bangalore / Bengaluru, Karnataka.
The Swemed Magnesium Electrolyte Reagent Kit 2 × 50 ml is suitable for pathology laboratories, diagnostic centres, hospitals, nephrology facilities, dialysis centres and professional clinical chemistry laboratories using compatible open-system analysers.
The product can be ordered through microsidd.com, subject to stock availability and serviceability.
Relevant buyer searches include:
The Swemed Magnesium Electrolyte Reagent Kit 2 × 50 ml is a ready-to-use professional clinical chemistry reagent for quantitative magnesium determination using the Xylidyl Blue / EGTA endpoint method.
Swemed’s product insert identifies the assay as the Xylidyl Blue Method, while the current catalogue classifies the product method as EGTA.
505 nm.
10 µl.
1000 µl.
2.0 mg/dL.
1–5.0 mg/dL.
5.0 mg/dL.
Serum and heparin plasma.
Red blood cells contain more magnesium than serum, so haemolysis can cause falsely elevated results.
Yes. Swemed states that the reagent and standard are ready to use.
Yes, on compatible open-system semi-automatic biochemistry analysers after method programming and validation.
Yes, on compatible open-system fully automatic biochemistry analysers that allow third-party reagent programming and support the required endpoint parameters.
| Entity | Details |
|---|---|
| Product | Magnesium Electrolyte Reagent Kit |
| Brand | Swemed Diagnostics |
| Pack Size | 2 × 50 ml |
| Product Code | MAG 717 |
| Analyte | Magnesium |
| Method | Xylidyl Blue / EGTA |
| Mode | Endpoint |
| Wavelength | 505 nm |
| Unit | mg/dL |
| Specimen | Serum / Heparin Plasma |
| Clinical Category | Electrolytes / Renal / Metabolic 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 |
Electrolyte and mineral reagents should be purchased only after verifying the correct analyte, methodology, wavelength, sample type, pack size, storage requirements and analyser compatibility.
Microsidd India specialises in laboratory and diagnostic products and has long-standing experience in the IVD sector, helping professional buyers verify technical requirements before ordering.
| Buying Factor | Microsidd.com | Large Online Marketplaces | Offline / Local Suppliers |
|---|---|---|---|
| Seller Specialisation | Diagnostic & laboratory focused | Seller expertise varies | Dealer dependent |
| Method Verification | Xylidyl Blue / EGTA can be confirmed | Listing details may be limited | Depends on dealer |
| Pack Verification | 2 × 50 ml can be checked | Pack listing may vary | Stock dependent |
| Open-System Guidance | Better suited to analyser-specific enquiries | Often limited | Dealer dependent |
| Product Support | Technical parameters can be checked before ordering | General support | Depends on supplier |
| 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 |
It is used for quantitative determination of magnesium in serum and plasma using the Xylidyl Blue method.
2 × 50 ml.
Xylidyl Blue / EGTA Method.
505 nm.
Endpoint.
10 µl.
1000 µl.
2.0 mg/dL.
1–5.0 mg/dL.
5.0 mg/dL.
Yes. Both the reagent and standard are ready to use.
No. Swemed advises against visibly haemolysed specimens because erythrocytes contain high magnesium concentrations.
EDTA, sodium fluoride and oxalate should be avoided. Trace citrate can also interfere because chelating agents prevent formation of the colour complex.
At 18–30°C, protected from light and contamination. Do not freeze.
Yes, on compatible open-system semi-automatic biochemistry analysers after programming and validation.
Yes, on compatible open-system fully automatic analysers supporting the required endpoint application.
No. It is intended for professional in vitro diagnostic use only.
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.
Magnesium results should not be interpreted independently to diagnose or exclude renal, endocrine, gastrointestinal, metabolic or electrolyte disorders. Results should be correlated with clinical history, calcium, potassium, renal-function tests and other relevant investigations.
Because haemolysis, chelating agents and glassware contamination can significantly affect magnesium measurement, correct specimen handling and laboratory technique are especially important.
For open-system fully automatic and semi-automatic analysers, instrument compatibility, application settings, calibration, quality control and analytical 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.
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.
| Specification name | Specification Value |
|---|---|
| Chemical grade | Laboratory, Reagent |
| Test method | Lab analysis |
| Test sample | Blood |
