Urine sample of 1 ml in quantity was mixed with 50 [micro]l of 6-alanine-d4 IS solution (2 mg/l), followed by 500 [micro]l of 10 mM sodium borate and then 400 [micro]l of a 2,4-dinitrofluorobenzene
(DNFB) derivatizing solution (10 g/l in acetonitrile).
Applying the derivatization method with 2,4-dinitrofluorobenzene
(2,4-DNFB) by GC-MS to detect morpholine has better sensitivity, but has low stability .
Pradella, Reactivity of 2-aminothaizole toward 2,4-Dinitrofluorobenzene
. Products and structures J.
used a 2,4-dinitrofluorobenzene
(DNFB)-induced mouse model of atopic symptoms in 2011 and found that a T.
Baldwin, "Active center studies on bacterial luciferase: modification of the enzyme with 2,4-dinitrofluorobenzene
," Biochemistry, vol.
Abbreviations ConA: Concanavalin A LPS: Lipopolysaccharide DNFB: 2,4-Dinitrofluorobenzene
DTH: Delayed-type hypersensitivity RA: Rheumatoid arthritis TCM: Traditional Chinese medicine TAPOs: A-type procyanidin oligomers PB-2: Procyanidin B2 CTB-1: Cinnamtannin B1 CTD-1: Cinnamtannin D1 PA-1: Parameritannin A1 PC-1: Procyanidin C1.
Potassium iodate [6,7], crowned 2,4- dinitrophenolazophenol-barium (-) complex  and 2,4-dinitrofluorobenzene
 are used for determination of m-aminophenol.
The contact sensitizers 2,4,6-trinitrobenzene-sulfonic acid (TNBS), 2,4-dinitrofluorobenzene
(DNFB), Ni[SO.sub.4], and [K.sub.2][Cr.sub.2][O.sub.7] induced upregulation of IL-1[beta] rnRNA in Mo-DCs (6).
We pipetted 25 [micro]L 0.5 M BeS[O.sub.4] in dibutylphthalate (BeS[O.sub.4]/DBPT; 1:1) or the positive control, 0.25% 2,4-dinitrofluorobenzene
(DNFB; Sigma) in 4:1 AOO, onto the dorsum of the ears for 3 consecutive days.
A biphasic ear swelling response [32, 33] was induced by painting both sides of each ear pinnae with 10 [micro]L of 0.05-0.2% 2,4-dinitrofluorobenzene
(DNFB, Sigma, St Louis, MO) in acetone using a micrometer to measure ear thickness in a blinded fashion at the indicated times.
Tae-Ho Kim and colleagues studied the effects of naringenin on 2,4-dinitrofluorobenzene
(DNFB)-induced atomic dermatitis in NC/Nga mice in 2013.
Materials and methods: The anti-inflammatory activity of MGEB was evaluated using 2,4-dinitrofluorobenzene
(DNFB)-induced allergic contact dermatitis (ACD) in mice.