ライフサイエンスコーパス: ppt

1 in the atmosphere at mole ratios of 0.3-1.0 ppt, and in the snowpack interstitial air at mole ratios

2 TD vs AD difference, 4.2 ppt [95% CI, 0-10.0 ppt]; P = .05).

3 FTD, 2.2% in HCs (FTD vs HC difference, 9.0 ppt [95% CI, 5.0-14.6 ppt]; P < .001), and 6.9% in patie

4 0-percentage point (ppt) (95% CI, 9.10-10.00 ppt) increase in the probability of billed depression sc

5 y disorder, a 3.3-ppt (95% CI, -4.60 to 2.00 ppt) decrease in prescription medication (P < .001), and

6 DDs/HxCDFs)/heptas (HpCDDs/HpCDFs), and 3.00 ppt for the octas (OCDD/OCDF).

7 achieving a detection limit as low as 0.001 ppt.

8 table at Jungfraujoch (mole fractions <0.003 ppt, parts-per-trillion, 10(-12)) but since then the per

9 tion spanning from 10 fg/mL to 1 ng/mL (0.01 ppt to 1 ppm).

10 cial and ethnic minoritized groups (DD, 1.01 ppt; 95% CI, 0.14 to 1.87) as compared with non-Hispanic

11 at very low mole fractions (typically <0.03 ppt) at both stations, and features pronounced seasonali

12 detection on a whole weight basis were 0.05 ppt for TCDD and 0.10 ppt for TCDF, 0.50 ppt for the pen

13 f NH(3) and NH(4)(+) are 3.52 ng m(-3) (5.05 ppt) and 1.04 ng m(-3), respectively.

14 ults demonstrate clean canister blanks (0.06 ppt(v) [0.24 ng/m(3)], which is below the detection limi

15 of potential misuse/SUD (trend change, -0.1 ppt; P = .03; 95% CI, -0.1 to -0.01).

16 xperienced an immediate level decrease (-2.1 ppt; P = .04; 95% CI, -4.2 to -0.1) and a decreasing tre

17 sulted in a detection limit for Ag(+) of 4.1 ppt (3.8 x 10(-1)1 M).

18 .9 ppt]; P < .001; FTD vs AD difference, 6.1 ppt [95% CI, 2.6-10.6 ppt]; P < .001) at all time points

19 umental limit of detection (LOD) of around 1 ppt for lanthanides.

20 with high precision and sensitivity (LOD < 1 ppt or 1 ng/L).

21 unds, excluding those with concentrations <1 ppt, with established databases of health effect thresho

22 weight basis were 0.05 ppt for TCDD and 0.10 ppt for TCDF, 0.50 ppt for the pentas (PeCDDs/PeCDFs)/he

23 d limit of detections in the range of 0.4-10 ppt for nine terrestrial SOA-markers and a marker of bio

24 (P < .001), and a 3.3-ppt (95% CI, 2.50-4.10 ppt) increase in any outpatient mental health treatment

25 ppt) in solution with a linear range from 10 ppt to 10 ppm.

26 urity grade of CO2 specified at less than 10 ppt ECD-responsive contaminants.

27 ns, limits of detection ranging from 1 to 10 ppt can be obtained depending on the Se compound and 30

28 ollution events, mole fractions of up to ~10 ppt were observed.

29 9.8%) over a wide dynamic mass range (1-100 ppt(v)), recovery/accuracy of 93%, a low selected ion mo

30 LOD as low as 40 and 100 ppt, respectively, could be reached for deionized and ta

31 etect PFAS concentrations of ~1 ppb and ~100 ppt, respectively.

32 ith limits of detection of approximately 100 ppt, which should enable ambient measurements.

33 d elimination rates for concentrations < 100 ppt.

34 injection volume detection limit using a 108 ppt solution is 2.0 pL (216 pg).

35 A small subset (3.3%) were above 109 ppt); these tended to be near EtO-emitting facilities, t

36 l, limits of detection of 1.9 ppt(v) and 110 ppt(v) could be reached.

37 on monitoring method detection limit of 0.12 ppt(v) (0.48 ng/m(3)), replicate precision of 6.8% RSD,

38 However, the lowest detection limits of 13 ppt(v) and 301 ppt(v) can be achieved with the field-swi

39 ppt that rise above a background of 12 to 13 ppt.

40 summer-time TFA mixing ratios of about 0.15 ppt (high emission scenario) will surpass previously mea

41 observations of NO2 with the sensitivity (15 ppt/10 s at S/N = 2) and portability necessary to study

42 am-level limits of detection (i.e., under 15 ppt in a 4 L sample for most compounds).

43 71 ppt of N(2)O(5), 21 ppt of BrCl, and 153 ppt of HO(2)NO(2) were measured using chemical ionizatio

44 iagvik, Alaska, up to 21 ppt of ClNO(2), 154 ppt of Cl(2), 27 ppt of ClO, 71 ppt of N(2)O(5), 21 ppt

45 and in both cases, a detection limit of ~170 ppt was determined.

46 ith a S/N = 3 limit of detection (LOD) of 18 ppt(v)/min, with planned upgrades to reduce the LOD to 5

47 ranging from freshwater to oligohaline (0-2 ppt) in four rivers near the Chesapeake Bay (Virginia).

48 detected with the functionalized MCs was 1.2 ppt, which is in the range needed by the cosmetics indus

49 patients with AD (FTD vs AD difference, 4.2 ppt [95% CI, 0-10.0 ppt]; P = .05).

50 patients with female breast cancer (DD, 1.20 ppt; 95%CI, 0.27 to 2.12) when stratifying by cancer typ

51 e method exhibits a limit of detection of 20 ppt and a limited cross-reactivity with high concentrati

52 It reaches limits of detection of 20 ppt(v) for dimethyl methylphosphonate and 40 ppt(v) for

53 of 400 ppt and perfluorobutanoic acid of 200 ppt.

54 Cl(2), 27 ppt of ClO, 71 ppt of N(2)O(5), 21 ppt of BrCl, and 153 ppt of HO(2)NO(2) were measured usi

55 - May 2016 near Utqiagvik, Alaska, up to 21 ppt of ClNO(2), 154 ppt of Cl(2), 27 ppt of ClO, 71 ppt

56 ack interstitial air at mole ratios up to 22 ppt under natural sunlit conditions and up to 35 ppt whe

57 thermal (8-28 degrees C) and salinity (0-23 ppt) conditions.

58 e pronounced as salinity increased toward 23 ppt.

59 c voltammetry method) and 298.0 pM or 101.24 ppt (by the Differential Pulse Voltammetry method).

60 alue (40 ppt) and commercial ELISA tests (25 ppt).

61 Limits of detection (LOD) as low as 250 ppt were readily achievable by direct naked-eye observat

62 ta with mixing ratios ranging from 20 to 250 ppt(v) glyoxal.

63 p to 21 ppt of ClNO(2), 154 ppt of Cl(2), 27 ppt of ClO, 71 ppt of N(2)O(5), 21 ppt of BrCl, and 153

64 A maximum daytime ClO concentration of 28 ppt was observed following an early morning peak of 75 p

65 um concentration levels of, for instance, 29 ppt(v) for sarin (GB) within an averaging time of only 1

66 opioid prescription rate (trend change, -0.3 ppt; P < .001; 95% CI, -0.5 to -0.1) and rate of potenti

67 2-butanone, the limits of detection are 1.3 ppt(v) and 57 ppt(v).

68 han EPA estimates (median difference of 21.3 ppt).

69 median aggregated values were 31.4 and 23.3 ppt, respectively, and a majority (75%) of 500 m grid ce

70 was significantly higher at 30 ppt than at 3 ppt.

71 a postpartum mood or anxiety disorder, a 3.3-ppt (95% CI, -4.60 to 2.00 ppt) decrease in prescription

72 rescription medication (P < .001), and a 3.3-ppt (95% CI, 2.50-4.10 ppt) increase in any outpatient m

73 to assess the effects of salinity (3, 16, 30 ppt) and dissolved organic carbon (DOC, approximately 1.

74 he LC50 value was significantly higher at 30 ppt than at 3 ppt.

75 temperature ~ 17 degrees C and salinity ~ 30 ppt), which dictated the regime transitions of CO(2) upt

76 d depending on the Se compound and 30 to 300 ppt for the volatile S species.

77 lowest detection limits of 13 ppt(v) and 301 ppt(v) can be achieved with the field-switching shutter

78 equivalence values for the samples are 0.35 ppt (nondetects = 0) and 0.89 ppt (nondetects = 1/2 LOD)

79 els to predict the probability of PFOA >= 35 ppt, the 2017 Minnesota health advisory level.

80 under natural sunlit conditions and up to 35 ppt when the snowpack surface was artificially irradiate

81 ith a detection limit of 483.73 pM or 164.36 ppt (by cyclic voltammetry method) and 298.0 pM or 101.2

82 n mussel to reduced water salinity (18 vs 37 ppt), caused a significant reduction (p < 0.05) in mantl

83 tion are for the monomers between 70 and 370 ppt(v) and for the dimers between 450 and 800 ppt(v) for

84 eving a theoretical limit of detection of 38 ppt and a resolving power of 1.57 at 10 ppb and 836 SV f

85 tivity, reaching a limit of detection of 0.4 ppt for PFOS and 1.65 ppt for PFOA.

86 ) and a decreasing trend (trend change, -0.4 ppt; P = .009; 95% CI, -0.6 to -0.1) in rate of potentia

87 lower limit of detection of 367.8 pM (103.4 ppt) by S3 nanoaggregates.

88 elevant of environmental concentrations (3.4 ppt <= QD-LOQs <= 2.5 ppb).

89 ts with AD (4.2%) (FTD vs HC difference, 8.4 ppt [95% CI, 5.2-12.9 ppt]; P < .001; FTD vs AD differen

90 ions above health-based regulatory levels (4 ppt); 94% of detections exceed this limit.

91 The detection sensitivity was 4 ppt/10 s (3sigma).

92 ensitivity obtained is around 30% for 10(-4) ppt (0.1 fg/ml) AFB1 which is greater than 1.5 times tha

93 with excellent detection limit of 0.6*10(-4)ppt and satisfied specificity due to the excellent affin

94 ppt(v) for dimethyl methylphosphonate and 40 ppt(v) for methyl salicylate.

95 mits of detection (LOD) ranging from 2 to 40 ppt, enabling online monitoring in ambient air, especial

96 ical serum concentration threshold value (40 ppt) and commercial ELISA tests (25 ppt).

97 ion for perfluorooctanoic acid (PFOA) of 400 ppt and perfluorobutanoic acid of 200 ppt.

98 gett Forest varied from below 50 ppt to 4000 ppt and NO2 ranged from 5 to 50% of the total reactive n

99 ared with non-Hispanic White peers (DD, 0.41 ppt; 95% CI, -0.06 to 0.87) and among patients with a Ch

100 hose with a comorbidity score of 0 (DD, 0.44 ppt; 95% CI, 0.005 to 0.87).

101 on range with a linear response from 2 to 45 ppt.

102 Charlson comorbidity score of >= 2 (DD, 6.48 ppt; 95% CI, 0.81 to 12.16) than those with a comorbidit

103 s with a detection limit of 80 pmol L(-1) (5 ppt) and was utilized for direct determination of carbon

104 detection limit as low as 0.5, 0.8, and 1.5 ppt for BZ, ABZ, and DABZ, respectively, can easily be a

105 Concentrations as low as 2.5 ppt of LSD and several of its analogs were detected in s

106 Low salinities (<2.5 ppt) and low d(18)O(H20) values (<1% in snow and upper i

107 AD difference, 1.6 ppt [95% CI, -1.2 to 5.5 ppt]; P = .32); at 5 years after the diagnosis, the prev

108 with planned upgrades to reduce the LOD to 5 ppt(v)/min.

109 18 additional screens per 100 births), a 2.5-ppt (95% CI, 1.40-3.50 ppt) increase in the probability

110 .05 ppt for TCDD and 0.10 ppt for TCDF, 0.50 ppt for the pentas (PeCDDs/PeCDFs)/hexas (HxCDDs/HxCDFs)

111 er 100 births), a 2.5-ppt (95% CI, 1.40-3.50 ppt) increase in the probability of being diagnosed with

112 or air (~10-70 ppb) than in outdoor air (~50 ppt to 5 ppb).

113 NO2 at Blodgett Forest varied from below 50 ppt to 4000 ppt and NO2 ranged from 5 to 50% of the tota

114 t DDT in water to a limit-of-detection of 50 ppt with a response time of <60 s.

115 was detected down to an estimated LOD of 50 ppt.

116 Some of the highest concentrations ( >500 ppt) originated from the marginal ice zone in the Ross a

117 at very low concentrations (from 0.1 to 5000 ppt).

118 screen and FT-IRIS assays were 2.29 and 2.56 ppt, respectively, indicating that the molecular changes

119 he limits of detection are 1.3 ppt(v) and 57 ppt(v).

120 tion region as required for nickel-63 are 58 ppt(v) for the protonated monomer and 3.4 ppb(v) for the

121 ir at a relative humidity (RH) of 40% is 0.6 ppt (1 min average, signal-to-noise ratio =2), with an e

122 patients with AD (FTD vs AD difference, 1.6 ppt [95% CI, -1.2 to 5.5 ppt]; P = .32); at 5 years afte

123 vs AD difference, 6.1 ppt [95% CI, 2.6-10.6 ppt]; P < .001) at all time points and increased during

124 vs HC difference, 9.0 ppt [95% CI, 5.0-14.6 ppt]; P < .001), and 6.9% in patients with AD (FTD vs AD

125 (ppt) compared with 28.9 degrees C and 15.6 ppt for the previous 5 years (P<.001).

126 4.7 percentage points [ppt] [95% CI, 2.2-8.6 ppt]; P < .001), and 5.0% in patients with AD (FTD vs AD

127 tifiable at concentrations of 10, 0.3, and 6 ppt, respectively, which are lower than the conventional

128 below the instrumental detection limit (<60 ppt).

129 hair samples spiked with PhIP at 200 and 600 ppt.

130 The detection limit is 5 pM (0.63 ppt), the lowest ever reported for an electroanalytical

131 r and collection efficiency for detecting 64 ppt of Cu(II) within 5 min of deposition and 4.0 mL min(

132 it of detection of 0.4 ppt for PFOS and 1.65 ppt for PFOA.

133 on using this method was observed to be 0.66 ppt (2.3 pM).

134 htly higher for the protonated monomer at 68 ppt(v), but lower for the proton-bound dimer at 2 ppb(v)

135 llin vapor in a concentration range from 2.7 ppt to 0.3 ppm, with a detection limit of 2.7 ppt.

136 pt to 0.3 ppm, with a detection limit of 2.7 ppt.

137 ng ratios of up to approximately 6.8 and 4.7 ppt, respectively.

138 can remove 99.99% PFOA from 1000 ppb to <70 ppt within 2 min, which is lower than the advisory level

139 es were estimated to be 8.36, 4.10, and 0.71 ppt year(-1) for HCFC-22, HFC-125, and HFC-152a, respect

140 ClNO(2), 154 ppt of Cl(2), 27 ppt of ClO, 71 ppt of N(2)O(5), 21 ppt of BrCl, and 153 ppt of HO(2)NO(

141 served following an early morning peak of 75 ppt of Cl2.

142 ielded a detection limit of approximately 80 ppt (parts per trillion) for isoprene with a measurement

143 ix effects with limits of detection below 80 ppt.

144 by tails with Ir concentrations of 20 to 80 ppt that rise above a background of 12 to 13 ppt.

145 pt(v) and for the dimers between 450 and 800 ppt(v) for 1 s of averaging for various ketones, methyl

146 els, reaching maximum hourly averages of 800 ppt, the highest inland Cl(2) concentration reported to

147 mples are 0.35 ppt (nondetects = 0) and 0.89 ppt (nondetects = 1/2 LOD).

148 ers of 1-butanol, limits of detection of 1.9 ppt(v) and 110 ppt(v) could be reached.

149 croL/min have shown a detection limit of 1.9 ppt.

150 ty (75%) of 500 m grid cells were above 10.9 ppt, the lifetime exposure concentration corresponding t

151 vs HC difference, 8.4 ppt [95% CI, 5.2-12.9 ppt]; P < .001; FTD vs AD difference, 6.1 ppt [95% CI, 2

152 rication facilities ranged from 10.0 to 9120 ppt(v) TMS and appear to be associated with the use of h

153 r suggests a I(2) mixing ratio range of 6-93 ppt(v) can account for the observed particle production

154 arts per trillion, volume per volume of air [ppt(v)] [~ng/m(3)]).

155 Both kny;ntl and ppt;ntl double mutant embryos exhibit synergistic trunk

156 o the mesendoderm are reduced in kny;ntl and ppt;ntl mutants.

157 develop an analytical method for determining ppt concentrations of acrolein and other carbonyls in ai

158 vertheless, this still leads to single-digit ppt(v) limits of detection for protonated monomers and h

159 race gases down to levels at ppb(v) and even ppt(v) within 1 s of analysis time when using chemical i

160 shift from positive to negative Delta(56)Fe(ppt-aq) reflects divergence between competing equilibriu

161 II) precipitates and aqueous Fe (Delta(56)Fe(ppt-aq)) dropped along the flow-path from about +4.1 to

162 ons with median detection limits of 10 pg/g (ppt) for fatty acids and 50 pg/g (ppt) for sterols.

163 f 10 pg/g (ppt) for fatty acids and 50 pg/g (ppt) for sterols.

164 etection for protonated monomers and hundred ppt(v) limits of detection for proton-bound dimers measu

165 Cell tracing in ppt;ntl and kny;ntl mutants demonstrates that the ventra

166 e, PFOS, was observed at ca. 8,000,000 ng/L (ppt) whereas, PFO5DoA, a compound predominantly found in

167 (LOD) in water was estimated to be 20 ng/L (ppt, parts-per-trillion) for aminocyclopyrachlor and 1 n

168 and silver nanoparticles at the ng/kg level (ppt).

169 or the 17 elements tested, detection limits (ppt) and sensitivities achieved with the DIHEN (at 85 mi

170 xtremely low Os concentrations (into the low ppt level).

171 solute gas phase detection limits in the low ppt range (in MS/MS mode) were achieved for all compound

172 ds in real time at concentrations in the low ppt range, but cannot differentiate isomers or isobaric

173 range for protonated monomers and in the low ppt(v)-range for proton-bound dimers, while the limits o

174 nearity and detection limits in the very low ppt level for both total and speciation analyses were fo

175 hod to quantify blood MTBE levels in the low-ppt range.

176 ls present at ultratrace levels (down to low-ppt to sub-ppt levels) that are lower than the detection

177 of R = 90 with detection limits in the lower ppt(v) range for different ketones, chlorinated hydrocar

178 ractions ranging from low picomoles per mol (ppt) to nanomoles per mol (ppb), depending on location a

179 f HOCl and Cl(2) tend to be low (10s-100s of ppt), indoor HOCl and Cl(2) can reach high levels during

180 for these pesticides down to the hundreds of ppt levels, nearing that which can be achieved with benc

181 to estimate the sensitivity (ion counts per ppt of the analytes) of the HRToF-CIMS to the acids.

182 (ntl)/brachyury, knypek (kny) and pipetail (ppt)/wnt5] interact to regulate posterior body morphogen

183 was associated with a 9.60-percentage point (ppt) (95% CI, 9.10-10.00 ppt) increase in the probabilit

184 in a net increase of 0.55 percentage points (ppt; 95% CI, 0.13 to 0.96).

185 FTD vs HC difference, 4.7 percentage points [ppt] [95% CI, 2.2-8.6 ppt]; P < .001), and 5.0% in patie

186 ivors (trend change, -1.1 percentage points [ppt]; P < .001; 95% CI, -1.5 to -0.7).

187 s excellent with detection limits in the sub ppt range for the majority of TH and THM.

188 at ultratrace levels (down to low-ppt to sub-ppt levels) that are lower than the detection limits obt

189 metal speciation analysis with subnanomolar (ppt) detection limits in complex matrices, with simultan

190 8) F[Formula: see text] ([Formula: see text] ppt) from a concrete sample originating from an external

191 in adulterated milk, whose detection at the ppt level in milk normally needs sophisticated instrumen

192 30.0 degrees C and 29.6 parts per thousand (ppt) compared with 28.9 degrees C and 15.6 ppt for the p

193 mit of approximately 0.5 parts per thousand (ppt), or 410 pg, is found.

194 salinities from 27 to 43 parts per thousand (ppt), yet its salt acclimation strategy remains enigmati

195 a detection limit of 0.7 parts per thousand (ppt).

196 electively identify these substances down to ppt levels.

197 tation to detect parts per trillion (ppt) to ppt of wide diversity of (bio)molecules (e.g., amino aci

198 hydrolysis product is 7 parts per trillion (ppt) in solution with a linear range from 10 ppt to 10 p

199 ) of the melamine is 120 parts per trillion (ppt) in water and 100 parts per billion (ppb) in infant

200 d furans were measured at part per trillion (ppt) levels in beef fat collected from slaughter facilit

201 ection limits in the low parts per trillion (ppt) range.

202 nstrumentation to detect parts per trillion (ppt) to ppt of wide diversity of (bio)molecules (e.g., a

203 At low parts per trillion (ppt), EE2 induces feminisation of male fish, diminishing

204 ponding to ~1.5 and 36.2 parts per trillion (ppt), respectively, for two different graphite samples o

205 ses down to the range of parts per trillion (ppt).

206 Ir concentration is 3000 parts per trillion (ppt); this peak is flanked by tails with Ir concentratio

207 e atom levels reached 14 parts per trillion (ppt, pmol mol(-1); 4.2 x 10(8) atoms per cm(-3)) and wer

208 f detection as low as 64 parts-per-trillion (ppt) (1 min average) in addition to NO(x).

209 ion (LOQ) of PhIP was 84 parts-per-trillion (ppt) employing 50 mg of hair.

210 n the vapor phase at the parts-per-trillion (ppt) level.

211 spiked human urine at low part-per-trillion (ppt) levels using mass spectrometric detection.

212 ow detection limit (0.47 parts-per-trillion (ppt)), rapid response (within seconds), high selectivity

213 picogram per milliliter (parts per trillion, ppt) range despite a sensitive and selective analytical

214 nging from low pmol/mol (parts-per-trillion; ppt) to nmol/mol (parts-per-billion; ppb), depending on

215 from 18 parts per trillion volume-to-volume (ppt v) to 80 parts per billion volume-to-volume (ppb v).

216 Moreover, ntl interacts with ppt and kny to synergistically regulate the posterior ex