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TORCH IgM & IgG 5-in-1 Test Panel

One step TORCH rapid test panel is a rapid qualitative 5-in-1 screening test device, for the simultaneous detection of a group of viruses which all can affect the health of fetus.

TORCH test Panel

TORCH IgG & IgM Test Kits

One step TORCH rapid test panel is a rapid qualitative 5-in-1 screening test device, which are intended to be used as the eugenics screening test kits. It is a Gold Immuno-chromatography Assay (GICA) test kit, based on sandwich immunoassay principle. Recombinant antigens of the five viruses and anti-human IgM or IgG antibodies to the five viruses are respectively used to detect the specific antibodies in human serum or plasma samples.

The TORCH test kits are designed for the respective qualitative detection of IgG and IgM antibody isotypes specific to a group of viruses which all can affect the health of fetus, namely Toxoplasma gondii (Toxoplasmosis, TOXO), Cytomegalovirus (CMV), Rubella Virus (RV), Herpes Simplex virus I (HSV-1) and Herpes Simplex virus II (HSV-2).

More information

Single rapid test cassettes as well as dot filtration assay kits are available for all the five virus infections. For specific information about single parameter, please refer to the specific pages: TOXO Test kits, CMV Test kits, RuV Test kits, HSV-1 Test kits and HSV-2 Test kits respectively.

What is TORCH

The acronym TORCH was introduced in 1971 to highlight a group of viral diseases which affect the fetus and newborn, namely Toxoplasma gondii (TOXO), Rubella virus (RV), Cytomegalovirus (CMV), and Herpes simplex viruses (HSV-1 & HSV-2). These diseases often lead to a similar clinical picture which includes one or more of the following clinical signs: low birth weight, prematurity, purpura, jaundice, anemia, microcephaly, hydrocephaly, cerebral calcification, chorioretinitis, cataracts, microphthalmia, hearing impairment, mental retardation, autism and pneumonitis.

The early diagnosis of ToRCH infection is very important to avoid the symptoms and lesions. TORCH screening is now widely requested by clinicians investigating infants and pregnant women for congenital, perinatal and neonatal infections.

TORCH Test Kits: Principle, Packing...

Cat. No. Description (& Details) Specimen PCS/Box Quan. per CTN Quantity (Tests)
TORCH 101 TORCH IgM Test Panel serum 20 Bulk: 1000 PCS
Boxed: 32 Boxes
TORCH 102 TORCH IgG Test Panel serum 20 Bulk: 1000 PCS
Boxed: 32 Boxes
How to Use
TORCH rapid test and outer package

TORCH IgM Test Panel

General Information

(IVD Kit »-» Fetility & Eugenics -» One Step Lateral Flow Immunochromatographic Assay)

Catalog No.:TORCH 101
Description:TORCH IgM Test Panel
Category:Fetility & Eugenics
Style:Panel
Unit:PCS
Specimen:serum
No. of Step:One Step
Reading Time:15-30 Minutes
Cut Off:
Specification:4.0 mm
Quan. or Qual.:Qualitative
Sensitivity:
Specificity:
Method:Lateral Flow Double Antigen Sandwich

Packing Specification

Tests per Kit:20 Tests
Box Dimension:21.0 * 12.5 * 6.5 CM
Kits per CTN:32 Kits
Carton Dimension:53 * 45 * 36 CM
Tests per CTN (BULK):1000 Tests
Carton Volume:0.085 CBM
GW per CTN (Boxed):15.0 KG
GW per CTN (Bulk):17.5 KG

Materials Provided in the Test Kit

  • Test card in individual foil pouch;
  • Package insert;
  • Disposable urine container (Optional).

Specimen

Serum Collection

Collect blood specimen into a red top blood collection tube by vein puncture, which contains no anticoagulants.

Allow the blood to clot, or separate the serum by centrifugation.

Carefully withdraw the serum into a new pre-labeled tube.

serum Storage Condition

Test specimens as soon as possible after collecting. The specimens can be stored up to 5 days at 2-8°C if not tested immediately. The specimens should be frozen at -20°C for longer time storage. Don’t freeze and thaw the specimens for many times. Prior to testing, bring frozen specimens to room temperature slowly and mix gently. Specimens containing visible particulate matter should be clarified by centrifugation before testing. Do not use samples demonstrating gross lipemia, gross hemolysis or turbidity in order to avoid interference on result interpretation.

Testing Principle of Lateral Flow Double Antigen Sandwich

GICA Double Antigen Sandwich Method Illustration

Double antigen sandwich technology is commonly used to detect total antibody, which include IgM, IgG and IgA antibodies, which all can react and bound to specific antigen. In the lateral flow double antigen sandwich chromatographic rapid test, recombinant or purified antigens are used to capture and detect the total antibodies specifically.

In the test band region, purified or recombinant antigens or proteins are immobilized. In the end of the membrane strip where the samples are supposed to be added, another antigen conjugated with colloidal gold particles is embedded.

During the testing process, specimen from the patient is added to the end of the membrane strip. The antigen conjugate particles resolve into the specimen, where the antigen conjugate will react and bound to the target antibodies, if present.

This antibody-antigen conjugate complex then moves along the strip to the testing band region, under capillary effect. Where the immobilized antigen captures the complex, and the antigen-antibody-antigen-colloidal gold complex is fixed on test band region. When the complex congregates, the highly concentrated colloidal gold particles will develop some red or pink color, indicate a positive result.

If there is no target antibody in the specimen, the colloidal gold particles will not congregate on the test band region, and no color will develop, indicating a negative result.

Information | Packing | Specimen | Principle

TORCH IgG Test Panel

General Information

(IVD Kit »-» Fetility & Eugenics -» One Step Lateral Flow Immunochromatographic Assay)

Catalog No.:TORCH 102
Description:TORCH IgG Test Panel
Category:Fetility & Eugenics
Style:Panel
Unit:PCS
Specimen:serum
No. of Step:One Step
Reading Time:15-30 Minutes
Cut Off:
Specification:4.0 mm
Quan. or Qual.:Qualitative
Sensitivity:
Specificity:
Method:Lateral Flow Double Antigen Sandwich

Packing Specification

Tests per Kit:20 Tests
Box Dimension:21.0 * 12.5 * 6.5 CM
Kits per CTN:32 Kits
Carton Dimension:53 * 45 * 36 CM
Tests per CTN (BULK):1000 Tests
Carton Volume:0.085 CBM
GW per CTN (Boxed):15.0 KG
GW per CTN (Bulk):17.5 KG

Materials Provided in the Test Kit

  • Test card in individual foil pouch;
  • Package insert;
  • Disposable urine container (Optional).

Specimen

Serum Collection

Collect blood specimen into a red top blood collection tube by vein puncture, which contains no anticoagulants.

Allow the blood to clot, or separate the serum by centrifugation.

Carefully withdraw the serum into a new pre-labeled tube.

serum Storage Condition

Test specimens as soon as possible after collecting. The specimens can be stored up to 5 days at 2-8°C if not tested immediately. The specimens should be frozen at -20°C for longer time storage. Don’t freeze and thaw the specimens for many times. Prior to testing, bring frozen specimens to room temperature slowly and mix gently. Specimens containing visible particulate matter should be clarified by centrifugation before testing. Do not use samples demonstrating gross lipemia, gross hemolysis or turbidity in order to avoid interference on result interpretation.

Testing Principle of Lateral Flow Double Antigen Sandwich

GICA Double Antigen Sandwich Method Illustration

Double antigen sandwich technology is commonly used to detect total antibody, which include IgM, IgG and IgA antibodies, which all can react and bound to specific antigen. In the lateral flow double antigen sandwich chromatographic rapid test, recombinant or purified antigens are used to capture and detect the total antibodies specifically.

In the test band region, purified or recombinant antigens or proteins are immobilized. In the end of the membrane strip where the samples are supposed to be added, another antigen conjugated with colloidal gold particles is embedded.

During the testing process, specimen from the patient is added to the end of the membrane strip. The antigen conjugate particles resolve into the specimen, where the antigen conjugate will react and bound to the target antibodies, if present.

This antibody-antigen conjugate complex then moves along the strip to the testing band region, under capillary effect. Where the immobilized antigen captures the complex, and the antigen-antibody-antigen-colloidal gold complex is fixed on test band region. When the complex congregates, the highly concentrated colloidal gold particles will develop some red or pink color, indicate a positive result.

If there is no target antibody in the specimen, the colloidal gold particles will not congregate on the test band region, and no color will develop, indicating a negative result.

Information | Packing | Specimen | Principle