Claims
- 1. A test device for the detection of lactase activity in a meconium sample which comprises a carrier matrix incorporated with a composition comprising 1 to 4 percent by weight lactose, 3,3',5,5'-tetraalkylbenzidine indicator, glucose oxidase, and 0.1 to 1 percent by weight of a nonionic detergent.
- 2. The test device of claim 1 in which the composition incorporated into the carrier matrix also contains peroxidase.
- 3. The test device of claim 1 in which the nonionic detergent is polyethoxy fatty alcohol.
- 4. The test device of claim 1 in which the carrier matrix is attached to a polystyrene substrate.
- 5. The test device of claim 1 in which the composition also contains an interpolymer of methylvinylether and maleic anhydride.
- 6. Test device for detection of lactase activity in a meconium sample which comprises a carrier matrix incorporated with a composition comprising 1 to 4 percent by weight lactose, 3,3',5,5'-tetramethylbenzidine, glucose oxidase, peroxidase, 0.1 to 1 percent by weight polyethoxy oleyl alcohol, an interpolymer of methylvinylether and maleic anhydride and polyvinyl pyrrolidone.
Parent Case Info
This is a continuation of application Ser. No. 289,455, filed Aug. 3, 1981, now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4273868 |
Walter |
Jun 1981 |
|
4279993 |
Magers et al. |
Jul 1981 |
|
4385114 |
Guthlein et al. |
May 1983 |
|
Non-Patent Literature Citations (3)
Entry |
Shwachman et al., Am. J. Dis. Child., 132:1112-1114 (1978). |
Green et al., Pediatrics, 21:645-641 (1958). |
Antonowicz et al., Pediatrics, 56:782-787 (1975). |
Continuations (1)
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Number |
Date |
Country |
Parent |
289455 |
Aug 1981 |
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