Préparation de 500 mL de la solution acidifiée d’eau oxygénée de concentration C2 = 2,0 x 10–3 mol / L : 1,1 mL d’eau oxygénée à 10 V, 10 mL d’acide sulfurique à 1 mol / L et on complète avec de l’eau distillée. I- Le spectrophotomètre 1)- Mesure de l’absorbance d’une solution par spectrophotométrie. a)-.
superior to TN in predicting chl-a at all particular TN : TP ranges and over the entire TN : TP spectrum. Further analyses found that chl-a : TP was not in?uenced by TN : TP , while chl-a : TN was positively and highly correlated to TP : TN. 4. Based on these results, and others in the literature, we argue that the TN : TP .
and for TN by combustion oxidation followed by spectrophotom -etry using a BioTector analyzer. Total phosphorus ( TP ) was measured using acid persulfate digestion and dry matter (DM) was measured by drying at 105 C for 24 h. Dissolved reactive P was measured colorimetrically using ?ltered (0.45 mm).
COD and TP tests were conducted by spectrophotom -eter, BOD 5 by manometer, and the rest of experiments were carried out according to standard methods for the examination of water and wastewater. Every ex-periment was replicated three times to fulfill validity and accuracy. To analyze the data, SPSS software (version 19) was, TP = [(L*B – L*W)2 + (a*B – a*W)2 + (b*B – b*W)2]½. The greater the translucency parameter, the greater the translu-cency of the specimen. A mean and standard deviation were determined for each of the ceramic materials at each thickness. Data were analyzed with a.
Good precision if the RSD value is less than 2%. Increased levels of zingibern with chelating Oxalic Acid according to the equation y = 0.623x + 3.961 and R² = 0.979 Keywords: Oxalic Acid, Essential Oil, Ginger, Zingibern and Visible Spectrophotom, Treponema pallidum ( Tp ), the syphilis spirochete, is cur-rently classi?ed as a microaerophile because of its limited tolerance to oxygen during in vitro cultivation, but its propagation in vivo implicates an exposure to well-oxy-genated tissues [1, 2]. However, analysis of the full gen-ome indicates that Tp lacks the classic antioxidant, The determination of total protein ( TP ) in human serum is mostly based on the biuret method, i.e.
on the reaction of proteins with copper ions in an alkaline region. The reference method for measuring TP in serum using the biuret reaction was developed in 1981 by the working group (WG) of Doumas et al. (1,, Hasil pengamatan uji efektivitas in vitro untuk krim O/W diperoleh nilai %TE = 6,26 % TP = 19,58 nilai SPF = 88,44 dan untuk krim W/O diperoleh nilai %TE = 6,10 % TP = 30,06 nilai SPF = 75,08.
