# CRP Turbidimetric Reagent 1×50 mL | Turbilatex | Professional IVD | Peerless

## Peerless CRP Turbidimetric Reagent 1×50 mL | Latex Turbidimetry | Professional IVD

**Peerless CRP Turbidimetric Reagent** is a professional in-vitro diagnostic reagent for the quantitative determination of **C-Reactive Protein (CRP)** in serum using a **latex turbidimetric method**.

This listing is for the **1 × 50 mL pack**.

The supplied method uses latex particles coated with anti-CRP antibodies. When these particles react with CRP present in the specimen, agglutination occurs. The degree of agglutination is proportional to the CRP concentration and is measured turbidimetrically.

**Professional laboratory use only.** This product should be used by trained laboratory personnel on compatible validated photometric / chemistry analyser systems according to the current Peerless IFU and laboratory SOP.

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## Product Overview

-   **Product:** CRP – Turbidimetric
-   **Method:** Latex Turbidimetry
-   **Brand / Marketed By:** Peerless Biotech Pvt. Ltd.
-   **Pack Size:** 1 × 50 mL
-   **Analyte:** C-Reactive Protein / CRP
-   **Specimen:** Serum
-   **Reaction:** Increasing
-   **Mode:** Two Point Kinetic
-   **Wavelength:** 540 nm
-   **Sample Volume:** 10 µL
-   **Working Reagent Volume:** 1.0 mL
-   **Lag Time:** 10 seconds
-   **Measuring Time:** 120 seconds
-   **Linearity:** Up to 150 mg/L under the described assay conditions
-   **Unit:** mg/L
-   **Reference Value:** Adults up to 5 mg/L; laboratories should establish their own reference range
-   **Storage:** 2–8°C

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## Principle of the CRP Turbidimetric Test

The reagent uses **latex particles coated with anti-CRP antibodies**.

When a serum sample containing C-Reactive Protein is mixed with the latex reagent, antigen-antibody agglutination occurs. The resulting increase in turbidity is proportional to the CRP concentration in the specimen and is measured photometrically.

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## Reagent Composition

|     |     |
| --- | --- |
| **R1 – Diluent** | Tris buffer, 20 mmol/L, pH 8.2 |
| **R2 – Latex** | Latex particles coated with goat anti-human CRP, pH 7.3 |
| **CAL – Calibrator** | Human serum; CRP concentration stated on the vial label and traceable to Certified Reference Material BCR 470 (IRMM) |

The IFU states that R1, R2 and calibrator are ready to use. R2 should be gently shaken / swirled before use.

**Important:** the supplied IFU contains an apparent inconsistency between its stated working-reagent mixing ratio and the numerical example. Laboratories should follow the current manufacturer application sheet / lot-specific IFU or confirm the preparation directly with Peerless before routine use rather than resolving this discrepancy by assumption.

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## Assay Procedure – Manufacturer Method

Prewarm the working reagent and photometer / cuvette holder to **37°C**.

|     |     |
| --- | --- |
| **Instrument Zero** | Distilled water |
| **Wavelength** | 540 nm |
| **Sample / Calibrator** | 10 µL |
| **Working Reagent** | 1.0 mL |
| **First Reading** | Immediately after sample addition – A1 |
| **Second Reading** | After 2 minutes – A2 |

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## CRP Calculation

The manufacturer IFU calculates CRP concentration using the change in absorbance of the sample relative to the calibrator:

**CRP (mg/L) = \[(A2 − A1) Sample ÷ (A2 − A1) Calibrator\] × Calibrator Concentration**

The calibrator concentration should be taken from the value stated on the supplied calibrator vial.

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## System Parameters

|     |     |
| --- | --- |
| **Mode** | Two Point Kinetic |
| **Reaction** | Increasing |
| **Wavelength** | 540 nm |
| **Blank** | Distilled Water |
| **Sample Volume** | 10 µL |
| **Reagent Volume** | 1.0 mL |
| **Lag Time** | 10 seconds |
| **Measuring Time** | 120 seconds |
| **Linearity Limit** | Up to 150 mg/L under the described assay conditions |
| **Reporting Unit** | mg/L |

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## Specimen Requirements

**Specimen: Fresh serum.**

According to the IFU:

-   Serum is stable for **7 days at 2–8°C**.
-   Serum may be stored for up to **3 months at −20°C**.
-   Samples containing fibrin should be centrifuged before testing.
-   Hemolysed or contaminated samples are not suitable for testing.

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## Storage & Stability

Store the reagents tightly closed at **2–8°C** and prevent contamination during use.

According to the IFU:

-   Unopened / properly stored reagents remain stable until the expiry date printed on the label.
-   Do not use reagents after their expiry date.
-   The prepared working reagent is stated to be stable for **20 days at 2–8°C**.
-   Gently shake the reagent before use.
-   Visible particles or abnormal turbidity may indicate reagent deterioration.

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## Analytical Performance

|     |     |
| --- | --- |
| **Linearity** | Up to 150 mg/L under the described assay conditions |
| **Above Linearity** | IFU instructs samples above the range to be diluted 1/5 in 9 g/L NaCl and retested |
| **Detection Limit** | Values below 1 mg/L are stated to give non-reproducible results |
| **Analytical Sensitivity** | 2.9 mA / mg CRP/L |
| **Prozone Effect** | Up to 250 mg/L |

The IFU also reports that results did not show systematic differences when compared with commercial reagents of similar characteristics; detailed comparison data are available from the manufacturer on request.

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## Interference Information

Under the conditions stated in the Peerless IFU, the following concentrations are reported not to interfere:

-   **Lipemia:** 10 g/L
-   **Rheumatoid Factors:** 800 IU/mL
-   **Bilirubin:** 40 mg/dL
-   **Hemoglobin:** 12 g/L

Other substances may interfere. Laboratories should follow the complete current IFU and their internal interference-investigation policy when unexpected results occur.

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## Quality Control

Control sera should be used to monitor the performance of both manual and automated assay procedures.

The Peerless IFU recommends:

**Plasma Protein Control N-I – Ref. 3915010**  
**Plasma Protein Control N-II – Ref. 3915015**

Each laboratory should establish its own quality-control scheme, acceptable limits and corrective actions when controls fall outside established tolerances.

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## Reference Values

The IFU lists the following adult reference value:

**Adults: Up to 5 mg/L**

Each laboratory should establish or verify its own reference interval appropriate to its population, analytical system and laboratory practice.

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## Analyser Compatibility

The Peerless IFU states that this method may be used with different instruments; however, **every analyser application should be validated** to demonstrate that the required analytical performance characteristics are achieved.

The IFU further notes that the linearity limit can depend on the sample-to-reagent ratio and analyser being used.

Before ordering, laboratories should therefore verify:

-   Analyser model
-   Open-system capability
-   540 nm photometric capability
-   37°C thermostatic capability
-   Two-point kinetic programming
-   Sample and reagent volumes
-   Calibration procedure
-   Quality-control requirements

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## Clinical Significance of CRP

C-Reactive Protein is an acute-phase protein that may increase following tissue injury, infection, inflammation and other pathological processes.

CRP is a non-specific laboratory marker. A result should not be used alone to establish a diagnosis or determine the cause of inflammation.

The manufacturer specifically states that clinical diagnosis should not be made from a single test result but should be based on appropriate clinical and laboratory information.

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## Manufacturer & Marketing Information

**Manufactured by:** Asritha Diatech India Pvt. Ltd.  
**Marketed by:** Peerless Biotech Pvt. Ltd.

This distinction is useful for laboratories verifying the exact reagent source, current IFU and technical support documentation.

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## Related Laboratory Products at Microsidd

Browse professional laboratory reagents and equipment:

[**Bio Chemistry Reagents**](https://microsidd.com/collections/bio-chemistry-reagents)  
[**Laboratory Needs & Equipment**](https://microsidd.com/collections/laboratory-needs)  
[**Microsidd India – Laboratory & Medical Supplies Bangalore**](https://microsidd.com/pages/microsidd-india-bangalore)

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## Why Buy Peerless CRP Reagent from Microsidd India?

| Buying Consideration | Microsidd India | General Marketplace / Local Market |
| --- | --- | --- |
| **Exact Method Identification** | CRP Latex Turbidimetry clearly identified | Method details may be omitted |
| **Pack Size** | 1 × 50 mL clearly stated | May vary between listings |
| **Technical Information** | IFU-based parameters presented for pre-purchase verification | Often limited to basic product title and price |
| **Analyser Compatibility Warning** | Buyers advised to verify analyser and method settings before ordering | Seller dependent |
| **Professional Laboratory Focus** | Diagnostic and laboratory-product focused supplier | May be a general marketplace seller |
| **GST Invoice** | Available for eligible orders | Seller dependent |
| **Bengaluru Presence** | RT Nagar, Bengaluru | Seller location varies |
| **Institutional Procurement** | Laboratory, clinic and hospital enquiries supported subject to availability | Seller dependent |

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## Buy Peerless CRP Turbidimetric Reagent in Bangalore

**Microsidd India** supplies professional diagnostic and laboratory products from **RT Nagar, Bengaluru**.

Laboratories searching for **Peerless CRP Turbidimetric reagent Bangalore**, CRP Latex Turbidimetry reagent Bengaluru, CRP 1×50 mL reagent near me, CRP reagent supplier RT Nagar, biochemistry reagent supplier Bangalore or professional laboratory reagents Karnataka can check availability through Microsidd.com.

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## Microsidd India – NAP

**Business Name:** Microsidd India  
**Address:** 09, 2nd Floor, 14th Cross, RT Nagar, Bengaluru – 560032, Karnataka, India  
**Phone / WhatsApp:** +91 63667 72288  
**Email:** support@microsidd.com  
**Website:** https://microsidd.com

[**View Microsidd India on Google Maps**](https://www.google.com/maps/place/Microsidd+India/@13.0193885,77.5967849,17z/data=!4m14!1m7!3m6!1s0x3bae3d88d30dba57:0x8fc1ceef7bbff265!2sMicrosidd+India!8m2!3d13.0193885!4d77.5967849!16s%2Fg%2F11bw7cvpyd!3m5!1s0x3bae3d88d30dba57:0x8fc1ceef7bbff265!8m2!3d13.0193885!4d77.5967849!16s%2Fg%2F11bw7cvpyd?entry=ttu)

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## Frequently Asked Questions – Peerless CRP Turbidimetric Reagent

### What is the pack size?

The pack size is **1 × 50 mL**.

### What method does this CRP reagent use?

It uses **latex turbidimetry**.

### What sample is required?

The supplied IFU specifies **serum**.

### What wavelength is required?

The manufacturer method uses **540 nm**. The IFU specifies a photometer / spectrophotometer thermostatable at 37°C with a 540 ±20 nm filter for the manual method.

### What is the sample volume?

The stated sample / calibrator volume is **10 µL**.

### What is the working reagent volume?

The stated working reagent volume is **1.0 mL**.

### What is the reaction mode?

The system parameter is **Two Point Kinetic** with an increasing reaction.

### How long is the measuring time?

The IFU specifies a **10-second lag time** and a **120-second measuring time**.

### What is the linearity?

The stated linearity is **up to 150 mg/L** under the described assay conditions.

### What should be done with samples above 150 mg/L?

The manufacturer IFU instructs that higher-concentration specimens should be diluted **1/5 in 9 g/L NaCl** and retested.

### What is the detection limit?

The IFU states that values **below 1 mg/L give non-reproducible results**.

### What is the prozone limit?

The supplied analytical-performance section states a **prozone effect up to 250 mg/L**.

### How should the reagent be stored?

Store tightly closed at **2–8°C** and prevent contamination.

### How stable is the working reagent?

The IFU states that the working reagent is stable for **20 days at 2–8°C**.

### How long is serum stable?

The IFU states **7 days at 2–8°C** or **3 months at −20°C**.

### What is the adult reference value?

The IFU lists **up to 5 mg/L** for adults while advising each laboratory to establish its own reference range.

### Can it be used on different analysers?

The IFU states that the method may be used with different instruments, but every analyser application should be validated to demonstrate acceptable performance.

### Are calibrators required?

Yes. The supplied calibrator uses human serum, and its CRP concentration is stated on the vial. The value is traceable to Certified Reference Material BCR 470 (IRMM).

### Is quality control required?

Yes. Control sera are recommended for both manual and automated procedures. Each laboratory should establish its own QC scheme and corrective actions.

### Can CRP alone diagnose infection?

No. CRP is a non-specific laboratory marker. Clinical diagnosis should not be based on a single CRP result.

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## Professional IVD / Medical Disclaimer

**This reagent is for professional in-vitro diagnostic laboratory use by trained personnel.**

All analyser settings, reagent preparation, calibration, quality control, specimen handling, calculations and result interpretation must follow the current Peerless / manufacturer IFU and the laboratory's validated SOP.

The manufacturer specifically notes that applications to different instruments must be validated and periodically verified.

CRP is a non-specific acute-phase marker. A single CRP result should not be used independently to diagnose the underlying disease, infection or inflammatory condition.

The current IFU supplied with the actual product lot takes precedence over information displayed on an ecommerce page.

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## No Return / No Exchange

**This professional laboratory reagent is non-returnable and non-exchangeable once correctly supplied.**

Please verify before ordering:

-   **Brand:** Peerless
-   **Parameter:** CRP
-   **Method:** Latex Turbidimetry
-   **Pack Size:** 1 × 50 mL
-   Required analyser model
-   Analyser compatibility
-   Required application / method parameters
-   Calibration requirement
-   Storage requirements
-   Lot and expiry requirements where applicable

Ordering an incompatible reagent, incorrect method or unsuitable pack configuration is not considered a product defect when the supplied product matches the confirmed order.

Laboratory reagents are storage-, contamination- and expiry-sensitive products and cannot normally be returned to saleable inventory after delivery.

Incorrect supply, verified transit damage or other valid claims will be handled according to the [**Microsidd Refund, Return, Replacement & Cancellation Policy**](https://microsidd.com/pages/cancellation-and-refunds) and applicable law.

**An original, continuous, unedited and uncut unboxing video is compulsory for claims involving incorrect, missing or damaged products.**

Begin recording before opening the parcel. Open the carton by **cutting the sealing tape carefully with a blade; do not tear the carton**. Keep the courier label, sealed package, reagent packaging and product condition continuously visible.

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## Peerless CRP Turbidimetric – Product Entity Summary

**Product:** CRP – Turbidimetric  
**Method:** Latex Turbidimetry  
**Pack:** 1 × 50 mL  
**Marketed By:** Peerless Biotech Pvt. Ltd.  
**Manufactured By:** Asritha Diatech India Pvt. Ltd.  
**Analyte:** C-Reactive Protein / CRP  
**Specimen:** Serum  
**Mode:** Two Point Kinetic  
**Reaction:** Increasing  
**Wavelength:** 540 nm  
**Sample Volume:** 10 µL  
**Working Reagent:** 1.0 mL  
**Lag Time:** 10 seconds  
**Measuring Time:** 120 seconds  
**Linearity:** Up to 150 mg/L under stated conditions  
**Detection Limit:** Values below 1 mg/L stated as non-reproducible  
**Prozone:** Up to 250 mg/L  
**Reference Value:** Adults up to 5 mg/L; laboratory-specific range recommended  
**Storage:** 2–8°C  
**Professional Use:** In-vitro diagnostic laboratory use  
**Supplier:** Microsidd India, RT Nagar, Bengaluru

## Details

- **Price:** 1799.0 INR
- **Vendor:** Peerless
- **Type:** CRP Turbidimetric / Turbilatex Laboratory Reagent

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1799.00 INR | In stock |

## Images

- Peerless CRP turbidimetric reagent 1x50 ml professional laboratory reagent
- Peerless CRP turbidimetric reagent 1x50 ml professional laboratory reagent
- Peerless CRP turbidimetric reagent 1x50 ml professional laboratory reagent
- Peerless CRP turbidimetric reagent 1x50 ml professional laboratory reagent
- Peerless CRP turbidimetric reagent 1x50 ml professional laboratory reagent
- Peerless CRP turbidimetric reagent 1x50 ml professional laboratory reagent

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> Source: [Microsidd India](https://microsidd.com/products/peerless-crp-turbidimetric-reagent-1x50ml)
> Updated: 2026-11-07