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20030-U

Supelco

ORBO™ 502 Activated Silica Gel (20/45) 100/50 mg

W,W,F separators, O.D. × L 6 mm × 75 mm, pkg of 50 ea

Synonym(s):

ORBO™ Activated Silica Gel Tube

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About This Item

UNSPSC Code:
12190000
NACRES:
NB.24

material

W,W,F separators
silica gel

Quality Level

100

Agency

NIOSH 2000,5518

product line

ORBO™

composition

Bed A, 100 mg
Bed B, 50 mg

packaging

pkg of 50 ea

manufacturer/tradename

ORBO™ 502

technique(s)

active air sampling: suitable

O.D. × L

6 mm × 75 mm

matrix

activated silica gel

particle size

20-45 mesh

application(s)

air monitoring
environmental
industrial hygiene

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General description

ORBO 502 Activated Silica Gel (20/45) 100/50 mg sorbent tubes (W,W,F separators, O.D. × L 6 mm × 75 mm) contain two beds of the same selective adsorbent separated by glass wool or foam, for gas and vapor sampling. The dual-layer or two-bed construction of the tube allows for any sample breakthrough to be captured in the smaller back-up bed.

Legal Information

ORBO is a trademark of Sigma-Aldrich Co. LLC

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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K Flo et al.
Scandinavian journal of clinical and laboratory investigation, 55(8), 715-721 (1995-12-01)
Elevated extracellular cGMP levels have been observed in various clinical conditions, and the analyte has been proposed as a diagnostic marker of cardiovascular as well as malignant diseases. However, the use of extracellular cGMP as a pathophysiological marker requires detailed
Bjørn T Moe et al.
Anticancer research, 29(4), 1047-1052 (2009-05-06)
Endometrial hyperplasia is a precursor lesion of endometrial carcinoma. Clinical studies of endometrial hyperplasia have shown that levonorgestrel (LNG) is more therapeutically effective than medroxyprogesterone acetate (MPA). The present pharmacological in vitro study was performed to compare progestin effects on
A Orbo et al.
Tidsskrift for den Norske laegeforening : tidsskrift for praktisk medicin, ny raekke, 117(7), 972-976 (1997-03-10)
The development of female steroid hormone-related neoplasms such as gynaecologic and mammary cancers is influenced by hormones administered exogenously. Hormonal contraceptives and hormone replacement therapy both affect the risk of developing cancers in the endometrium, cervix, ovarium, and mammary glands.
Anne Beate Vereide et al.
Gynecologic oncology, 97(3), 740-750 (2005-05-12)
The aim of the study was to investigate apoptosis as a growth regulatory mechanism of gestagen in endometrial precancers and to compare differences in the apoptotic cascade after high and low dose gestagen regimens. Pre- and post-treatment paraffin-embedded endometrial hyperplasia
A Orbo et al.
International journal of oncology, 5(3), 619-625 (1994-09-01)
About 50% of the cases with invasive carcinoma of the uterine cervix occurs before menopause. Cyclic changes of sex steroids may therefore interfere with the ratio between extracellular levels of cGMP and cAMP (cGMP(ex)/cAMP(ex)). This ratio has been proposed as
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