Sensitivity of the separation (retention time) to the changesin MeOH a terjemahan - Sensitivity of the separation (retention time) to the changesin MeOH a Bahasa Indonesia Bagaimana mengatakan

Sensitivity of the separation (rete

Sensitivity of the separation (retention time) to the changes
in MeOH and Na2HPO4 was the lowest at only 0.001, suggesting
that MeOH and Na2HPO4 were not suitable because separation
between INH and PZA could not be
achieved..The use of MeOH and Na2HPO4
in various ratios resulted in close retention
times for INH and PZA, with a lack of
baseline resolution between the two
peaks. Although a small degree of separation
between INH and PZA was found,
adequate baseline resolution could not
be achieved. The retention (apparent
hydrophobicity) of RIF increased with an
increased ratio of buffer solution and decreased with the
increased ratio of solvents. RIF and PZA were both soluble in
MeOH and an increase in the MeOH ratio would decrease their
retention. ACN, and especially tBAH, showed greater influence
on the chromatographic separation of PZA and INH, and
further investigation was carried out employing ACN as the solvent
and tBAH as the buffer (Table IV). The use of tBAH
resulted in improved separation between INH and PZA. The
adjustment of pH would further optimize the separation. The
same chromatographic conditions as for the mobile phase
development were applied, except the pH was altered. Table V
shows the effect of pH on the the selected mobile phase.
All of the mobile phase compositions listed in Table V produced
good separation results, proving that the method showed
acceptable ruggedness. As in most reverse-phase systems,
retention and selectivity were controlled by the concentration
and nature of the organic modifier, pH, and to a lesser extent,
the concentration and nature of the buffer. The best separation
was produced by using the mobile phase consisting of
ACN–tBAH (42.5:57.5, v/v) (0.0002M), with a final pH of 3.10.
However, the pH range of 3.10 to 3.40 was also acceptable.
After six injections, the retention times were found to be 2.85
± 0.01, 3.54 + 0.01, and 10.97 + 0.01 min for RIF, INH, and
PZA, respectively, when using the described conditions with the
pH set at 3.1.
0/5000
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Hasil (Bahasa Indonesia) 1: [Salinan]
Disalin!
Sensitivity of the separation (retention time) to the changesin MeOH and Na2HPO4 was the lowest at only 0.001, suggestingthat MeOH and Na2HPO4 were not suitable because separationbetween INH and PZA could not beachieved..The use of MeOH and Na2HPO4in various ratios resulted in close retentiontimes for INH and PZA, with a lack ofbaseline resolution between the twopeaks. Although a small degree of separationbetween INH and PZA was found,adequate baseline resolution could notbe achieved. The retention (apparenthydrophobicity) of RIF increased with anincreased ratio of buffer solution and decreased with theincreased ratio of solvents. RIF and PZA were both soluble inMeOH and an increase in the MeOH ratio would decrease theirretention. ACN, and especially tBAH, showed greater influenceon the chromatographic separation of PZA and INH, andfurther investigation was carried out employing ACN as the solventand tBAH as the buffer (Table IV). The use of tBAHresulted in improved separation between INH and PZA. Theadjustment of pH would further optimize the separation. Thesame chromatographic conditions as for the mobile phasedevelopment were applied, except the pH was altered. Table Vshows the effect of pH on the the selected mobile phase.All of the mobile phase compositions listed in Table V producedgood separation results, proving that the method showedacceptable ruggedness. As in most reverse-phase systems,retention and selectivity were controlled by the concentrationand nature of the organic modifier, pH, and to a lesser extent,the concentration and nature of the buffer. The best separationwas produced by using the mobile phase consisting ofACN–tBAH (42.5:57.5, v/v) (0.0002M), with a final pH of 3.10.However, the pH range of 3.10 to 3.40 was also acceptable.After six injections, the retention times were found to be 2.85± 0.01, 3.54 + 0.01, and 10.97 + 0.01 min for RIF, INH, andPZA, respectively, when using the described conditions with thepH set at 3.1.
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Hasil (Bahasa Indonesia) 2:[Salinan]
Disalin!
Sensitivitas dari pemisahan (waktu retensi) terhadap perubahan
dalam MeOH dan Na2HPO4 adalah yang terendah di hanya 0,001, menunjukkan
bahwa MeOH dan Na2HPO4 tidak cocok karena pemisahan
antara INH dan PZA tidak bisa
achieved..The penggunaan MeOH dan Na2HPO4
dalam berbagai rasio mengakibatkan retensi dekat
kali untuk INH dan PZA, dengan kurangnya
resolusi awal antara kedua
puncak. Meskipun tingkat kecil pemisahan
antara INH dan PZA ditemukan,
resolusi dasar yang memadai tidak bisa
dicapai. Retensi (jelas
hidrofobik) dari RIF meningkat dengan
rasio peningkatan larutan buffer dan menurun dengan
meningkatnya rasio pelarut. RIF dan PZA berdua larut dalam
MeOH dan peningkatan rasio MeOH akan menurunkan mereka
retensi. ACN, dan terutama tBAH, menunjukkan pengaruh yang lebih besar
pada pemisahan kromatografi PZA dan INH, dan
penyelidikan lebih lanjut dilakukan menggunakan ACN sebagai pelarut
dan tBAH sebagai buffer (Tabel IV). Penggunaan tBAH
menghasilkan peningkatan pemisahan antara INH dan PZA. The
penyesuaian pH akan lebih mengoptimalkan pemisahan. The
kondisi kromatografi yang sama untuk fase gerak
pembangunan yang diterapkan, kecuali pH diubah. Tabel V
menunjukkan pengaruh pH pada fase gerak yang dipilih.
Semua komposisi fase seluler yang tercantum pada Tabel V diproduksi
hasil pemisahan yang baik, membuktikan bahwa metode menunjukkan
kekasaran diterima. Seperti di sebagian besar sistem fase-balik,
retensi dan selektivitas dikontrol oleh konsentrasi
dan sifat pengubah organik, pH, dan pada tingkat lebih rendah,
konsentrasi dan sifat buffer. Pemisahan terbaik
diproduksi dengan menggunakan fase gerak yang terdiri dari
ACN-tBAH (42,5: 57,5, v / v). (0.0002M), dengan pH akhir 3.10
Namun, kisaran pH 3,10-3,40 juga diterima.
Setelah enam suntikan, waktu retensi yang ditemukan menjadi 2,85
± 0,01, 3,54 + 0,01, dan 10,97 + 0,01 menit untuk RIF, INH, dan
PZA, masing-masing, ketika menggunakan kondisi yang dijelaskan dengan
set pH 3,1.
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